2492150
Descripción
Test por Sheena Gardner, actualizado hace más de 1 año
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Creado por Remington Miller
hace alrededor de 9 años
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Copiado por Sheena Gardner
hace alrededor de 9 años
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Pregunta 1
Pregunta
An environment consists of complex networks of interlinked systems.
Respuesta
- True
- False
Pregunta 2
Pregunta
What is a system?
Respuesta
-
A bunch of different parts working together to accomplish different goals.
-
A bunch of different parts working together to accomplish the same goal.
-
One part working to accomplish many different goals.
Pregunta 3
Pregunta
Without a part, the system will still work properly.
Respuesta
- True
- False
Pregunta 4
Pregunta
System inputs _?
Respuesta
-
Pull something out of the system.
-
Put something into the system
-
Take something away from the system
-
Don't do anything to interact with the system
Pregunta 5
Pregunta
System outputs _?
Respuesta
-
Are the result of the system inputs
-
Create the same input again for the same system
-
Are useless
Pregunta 6
Pregunta
A system output can serve as a input.
Respuesta
- True
- False
Pregunta 7
Pregunta
What are the types of feedback loops?
Respuesta
-
Positive
-
Electron
-
Neutral
-
Negative
Pregunta 8
Pregunta
In a negative feedback loop, the output acts as an input that moves the system, in a new direction.
Respuesta
- True
- False
Pregunta 9
Pregunta
Most systems do not use a negative feedback loop.
Respuesta
- True
- False
Pregunta 10
Pregunta
A negative feedback loop pushes towards _.
Respuesta
-
equilibrium
-
preservation
-
combustion
-
unsustainability
Pregunta 11
Pregunta
A positive feedback loop has the opposite effect of the negative feedback loop.
Respuesta
- True
- False
Pregunta 12
Pregunta
A positive feedback loop pushes towards _.
Respuesta
-
combustion
-
stable situations
-
unstable situations
Pregunta 13
Pregunta
Positive feedback loops are rare in nature.
Respuesta
- True
- False
Pregunta 14
Pregunta
What is the lithosphere?
Respuesta
-
Earth's decay
-
Earth's crust
-
Everything but earth's crust
Pregunta 15
Pregunta
What is the atmosphere?
Respuesta
-
Water
-
Outer space
-
Air surrounding our planet
Pregunta 16
Pregunta
What is the hydrosphere?
Respuesta
-
All land
-
All water
-
Everything but water
Pregunta 17
Pregunta
What is the biosphere?
Respuesta
-
Total of all the planet's biotic and abiotic components.
-
Total of all the planet's biotic components
-
Total of all the planet's abiotic components
-
Total of all the planet's water
Pregunta 18
Pregunta
Eutrophication is the process of nutrient over-enrichment.
Respuesta
- True
- False
Pregunta 19
Pregunta
Chemistry does not play a central role in many environmental challenges.
Respuesta
- True
- False
Pregunta 20
Pregunta
All material that has mass and occupies space is matter.
Respuesta
- True
- False
Pregunta 21
Pregunta
Laws of Conservation of Matter
Respuesta
-
can be transformed
-
cannot be transformed
-
cannot be destroyed or created
-
stays constant as its recycled
Pregunta 22
Pregunta
An element is _.
Respuesta
-
a fundamental type of matter
-
a fundamental type of science
Pregunta 23
Pregunta
An element cannot be broken down into any other substances with other properties.
Respuesta
- True
- False
Pregunta 24
Pregunta
Each element is composed of
Respuesta
-
atoms
-
three neutrons
-
element
Pregunta 25
Pregunta
An atom is the smallest component that maintains the chemical properties of the element.
Respuesta
- True
- False
Pregunta 26
Pregunta
Each atom has a nucleus with
Respuesta
-
protons
-
neutrons
-
electrons
-
proteins
-
chemicals
Pregunta 27
Pregunta
An element will always have the same number of
Respuesta
-
protons
-
neutrons
-
electrons
-
nuclei
Pregunta 28
Pregunta
An element can have different numbers of neutrons or electrons.
Respuesta
- True
- False
Pregunta 29
Pregunta
Isotopes _.
Respuesta
-
can have different numbers of neutrons
-
can have different numbers of electrons
-
can change its behavior
-
can be radioactive
-
cannot be radioactive
Pregunta 30
Pregunta
Ions are positively charged.
Respuesta
- True
- False
Pregunta 31
Pregunta
Ions are atoms that can gain or lose
Respuesta
-
protons
-
nuclei
-
neutrons
-
electrons
Pregunta 32
Pregunta
A pH scale
Respuesta
-
measures oxygen
-
measures hydrogen
-
measures carbon
-
measures nitrogen
Pregunta 33
Pregunta
Hydrogen ions and whether they are acidic or basic is
Respuesta
-
counted on a balance
-
measured on a pH scale
-
measured on a pH ruler
-
oberserved
Pregunta 34
Pregunta
Molecules are _.
Respuesta
-
the combination of two or more atoms
-
the combination of two atoms
-
the combination of four of the same atoms
Pregunta 35
Pregunta
Molecules composed of two or more different elemets are called compounds.
Respuesta
- True
- False
Pregunta 36
Pregunta
Organic compounds are
Respuesta
-
Carbon atoms bonded to hydrogen atoms
-
Hydrogen atoms bonded to hydrogen atoms
-
Carbon atoms bonded to carbon atoms
-
Nitrogen atoms bonded to carbon atoms
Pregunta 37
Pregunta
Polymers are long chains of repeated molecules.
Respuesta
- True
- False
Pregunta 38
Pregunta
Hydrocarbons are
Respuesta
-
compounds of hydrogen and carbon
-
compounds of hydrogen and nitrogen
-
compounds of carbon and nitrogen
Pregunta 39
Pregunta
Macromolecules are
Respuesta
-
Large molecules
-
Small molecules
-
Medium molcules
-
Microscopic molecules
Pregunta 40
Pregunta
What are three essential macromolecules?
Respuesta
-
Carbohydrates
-
Nucleic acids
-
Lipids
-
Proteins
Pregunta 41
Pregunta
Proteins are made up of chains of amino acids.
Respuesta
- True
- False
Pregunta 42
Pregunta
Amino acids do not determine the identity of proteins.
Respuesta
- True
- False
Pregunta 43
Pregunta
Amino acids
Respuesta
-
Store energy
-
Transport substances
-
Provide structural support
-
Produce tissue
Pregunta 44
Pregunta
Amino acids are the building blocks of life.
Respuesta
- True
- False
Pregunta 45
Pregunta
Nucleic acid direct protein production.
Respuesta
- True
- False
Pregunta 46
Pregunta
Nucleic acid carries
Respuesta
-
protein information
-
genetic information
-
mental information
-
carbohydrate information
Pregunta 47
Pregunta
What are the two types of nucleic acid?
Respuesta
-
DNA
-
RNA
-
RDNA
-
CNA
Pregunta 48
Pregunta
Carbohydrates are
Respuesta
-
simple sugars
-
complex sugars
-
simple proteins
-
nucleic acids
Pregunta 49
Pregunta
What are the two major types of energy?
Respuesta
-
Combustion energy
-
Potential energy
-
Wind energy
-
Kinetic energy
Pregunta 50
Pregunta
Potential energy is the energy of
Respuesta
-
position
-
chemicals
-
atoms
-
motion
Pregunta 51
Pregunta
Kinetic energy is the energy of
Respuesta
-
poisition
-
chemicals
-
wind
-
motion
Pregunta 52
Pregunta
Chemical energy is potential energy in the bonds of atoms.
Respuesta
- True
- False
Pregunta 53
Pregunta
Why is it important to have energy?
Respuesta
-
To do anything
-
To run
-
To do nothing
Pregunta 54
Pregunta
In the First Law of Thermodynamics, energy cannot be created or destroyed, but can change forms.
Respuesta
- True
- False
Pregunta 55
Pregunta
In the Second Law of Thermodynamics,
Respuesta
-
the nature of energy will change from a more ordered state to a less ordered state
-
the nature of energy will change from a less ordered state to a more ordered state
Pregunta 56
Pregunta
The Earth's energy comes from the moon.
Respuesta
- True
- False
Pregunta 57
Pregunta
Autotrophs are also know as consumers.
Respuesta
- True
- False
Pregunta 58
Pregunta
Autotrophs are known as producers.
Respuesta
- True
- False
Pregunta 59
Pregunta
Autotrophs
Respuesta
-
Use the sun's energy to produce their own food
-
Use the sun's energy to decompose
-
Do not use the sun's energy to produce their own food
Pregunta 60
Pregunta
Autotrophs
Respuesta
-
turn chemical energy into light energy
-
turn light energy into chemical energy
-
turn light energy into soil
-
turn chemical energy into wind energy
Pregunta 61
Pregunta
In photosynthesis, carbon dioxide and water are converted into sugars.
Respuesta
- True
- False
Pregunta 62
Pregunta
The components of photosynthesis are
Respuesta
-
Carbon dioxide
-
Water
-
Shade
-
Sunlight
-
Soil
-
Sugar
-
Nitrogen
-
Oxygen
Pregunta 63
Pregunta
Heterotrophs can produce their own food.
Respuesta
- True
- False
Pregunta 64
Pregunta
What are the components of cellular respiration?
Respuesta
-
Water
-
Energy
-
Carbon dioxide
-
Sunlight
-
Sugar
-
Oxygen
-
Monoxide
-
CO2
Pregunta 65
Pregunta
Energy is kept as heat in a one-way flow through the system.
Respuesta
- True
- False
Pregunta 66
Pregunta
An ecosystem is all of the organisms and non-living entities in a particular area at the same time
Respuesta
- True
- False
Pregunta 67
Pregunta
Primary production is the
Respuesta
-
conversion of solar energy to sugars
-
conversion of sugars to solar energy
-
conversion or water to gas
-
conversion of solar energy to wind energy
Pregunta 68
Pregunta
Gross primary production is the
Respuesta
-
use of energy made by the heterotrophs themselves
-
use of energy made by the plants themselves
-
use of atoms made by the plants themselves
Pregunta 69
Pregunta
Net primary production is energy left over to put into biomass.
Respuesta
- True
- False
Pregunta 70
Pregunta
All ecosystems produce biomass at the same rate.
Respuesta
- True
- False
Pregunta 71
Pregunta
Elements and compounds are consumed and required for survival of organisms.
Respuesta
- True
- False
Pregunta 72
Pregunta
Nitrogen has
Respuesta
-
7 protons, 7 neutrons
-
4 protons, 7 neutrons
-
4 protons, 4 neutrons
Pregunta 73
Pregunta
Phosphorus has
Respuesta
-
7 protons, 7 neutrons
-
15 protons, 15 neutrons
-
17 protons, 17 neutrons
Pregunta 74
Pregunta
Oxygen has
Respuesta
-
7 protons, 7 neutrons
-
7 protons, 8 neutrons
-
8 protons, 8 neutrons
Pregunta 75
Pregunta
Carbon has
Respuesta
-
7 protons, 6 neutrons
-
6 protons, 6 neutrons
-
6 protons, 7 neutrons
Pregunta 76
Pregunta
Carbon dioxide is a colorless gad used by plants for photosynthesis, given off by repiration, and released by burning fossil fuels.
Respuesta
- True
- False
Pregunta 77
Pregunta
Ionic bonds are
Respuesta
-
chemical bonds formed by the attraction between positively charged ions.
-
chemical bonds formed by the attraction between oppositely charged ions.
-
chemical bonds formed by the attraction between negatively charged ions.
-
chemical bonds formed by the attraction between neutrally charged ions.
Pregunta 78
Pregunta
A watershed is the entire area of a river from when a pipe drains into an ocean.
Respuesta
- True
- False
Pregunta 79
Pregunta
Hypoxia is the condition of extremely low dissolved oxygen concentrations in a body of water.
Respuesta
- True
- False
Pregunta 80
Pregunta
A covalent bond is a chemical bond formed by atoms "sharing" electrons.
Respuesta
- True
- False
Pregunta 81
Pregunta
What is a solution?
Respuesta
-
A mixture of substances in which elements, molecules, or compounds come together without chemically bonding.
-
A mixture of substances in which elements, molecules, or compounds come together with an ionic bond.
-
Plasma
Pregunta 82
Pregunta
Methane is a colorless gas produced primarily by anaerobic decomposition.
Respuesta
- True
- False
Pregunta 83
Pregunta
The ozone
Respuesta
-
is a molecule consisting of three oxygen atoms
-
absorbs ultraviolet radiation in the atmosphere
-
absorbs ultraviolet radiation in the stratosphere
-
is a molecule consisting of four oxygen atoms
Pregunta 84
Pregunta
What happens in biogeochemical cycles?
Respuesta
-
Nutrients cycle through the stratosphere, hydrosphere, and lithosphere.
-
Chemicals cycle through the atmosphere, hydrosphere, and lithosphere.
-
Nutrients cycle through the atmosphere, hydrosphere, and lithosphere.
Pregunta 85
Pregunta
What is a flux?
Respuesta
-
Movement among ponds
-
Movement among reservoirs
-
Movement among oceans
Pregunta 86
Pregunta
A source is a reservoir that releases more nutrients than they accept
Respuesta
- True
- False
Pregunta 87
Pregunta
In a sink, the reservoir accepts more than it releases.
Respuesta
- True
- False
Pregunta 88
Pregunta
What are the three forms of the hydrolytic cycle?
Respuesta
-
liquid
-
plasma
-
gas
-
solid
Pregunta 89
Pregunta
Water gets into the atmosphere only by evaporation.
Respuesta
- True
- False
Pregunta 90
Pregunta
What is transpiration?
Respuesta
-
Evaporation from plants
-
Evaporation from snow
-
Evaporation in general
Pregunta 91
Pregunta
Runoff is water flowing over land.
Respuesta
- True
- False
Pregunta 92
Pregunta
Human have only impacted some aspects of the water cycle.
Respuesta
- True
- False
Pregunta 93
Pregunta
How have we impacted the water cycle?
Respuesta
-
Overfilled water sources
-
Decreased evaporation
-
Depleted water sources
-
Reduced transpiration
-
Increased transpiration
-
Increased evaporation
Pregunta 94
Pregunta
Carbon is a part of every living thing.
Respuesta
- True
- False
Pregunta 95
Pregunta
Producers pull _ from the atmosphere.
Respuesta
-
CO2
-
H2O
-
N
-
K
Pregunta 96
Pregunta
Producers put some CO2 back into the atmosphere.
Respuesta
- True
- False
Pregunta 97
Pregunta
CO2 becomes incorporated into the tissues of _ and _.
Respuesta
-
plants, air
-
plants, insects
-
animals,insects
-
plants,animals
Pregunta 98
Pregunta
Settles into _ when organisms die.
Respuesta
-
Water
-
Sediment
-
Plants
Pregunta 99
Pregunta
What is the largest reservoir of carbon?
Respuesta
-
Water
-
Air
-
Plants
-
Soil
Pregunta 100
Pregunta
Putting too much CO2 into the air is a major climate change argument.
Respuesta
- True
- False
Pregunta 101
Pregunta
Shifted from _ to atmosphere.
Respuesta
-
hydrosphere
-
lithosphere
-
stratosphere
Pregunta 102
Pregunta
Nitrogen makes up how much of our atmosphere?
Respuesta
-
48%
-
78%
-
88%
-
76%
Pregunta 103
Pregunta
Nitrogen is essential.
Respuesta
- True
- False
Pregunta 104
Pregunta
Nitrogen needs what to help itself cycle.
Respuesta
-
Bacteria
-
Thunder
-
Lightning
-
Atoms
Pregunta 105
Pregunta
How many steps are in the nitrogen cycle?
Respuesta
-
3
-
2
-
4
-
6
Pregunta 106
Pregunta
Nitrogen has to be "fixed" before it can be used.
Respuesta
- True
- False
Pregunta 107
Pregunta
Through what step of the nitrogen cycle do plants take up nitrates?
Respuesta
-
Deneitrification
-
Nitrification
-
Nitrogen fixation
Pregunta 108
Pregunta
How have humans impacted the nitrogen cycle?
Respuesta
-
Reduced plants
-
Reduced bacteria
-
Increased amount of nitrogen in soils and water through fertilizer.
-
Increased amount of nitrogen in soils and water through new plants.
Pregunta 109
Pregunta
Phosphorus is found in the atmosphere.
Respuesta
- True
- False
Pregunta 110
Pregunta
The majority of phosphorus is found in
Respuesta
-
rocks
-
plants
-
animals
-
water
Pregunta 111
Pregunta
When rocks are weather, the phosphorus runs into the water and
Respuesta
-
settles into the sediment
-
settles into plants
-
settles into fish
-
is dissolved
Pregunta 112
Pregunta
Plants do not take up phosphorus.
Respuesta
- True
- False
Pregunta 113
Pregunta
How have humans impacted the phosphorus cycle?
Respuesta
-
Mined rocks
-
Put phosphorus in fertilizers
-
Taken phosphorus out of fertilizers
-
Detergents
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