What term could be used to describe a resource which is being made more slowly than it is being used up?
During complete combustion of butane, what are the chemical products?
water and [blank_start]carbon dioxide[blank_end]
Sulfur dioxide gas produced by the combustion of fossil fuels is generally responsible for producing [blank_start]acid rain[blank_end]?
When fuels burn they are reacting with the [blank_start]oxygen[blank_end] in the air. If there is an abundance of [blank_start]air[blank_end], then [blank_start]complete combustion[blank_end] will take place. This means [blank_start]carbon dioxide[blank_end] is produced. If they isn't enough air, then [blank_start]incomplete combustion[blank_end] happens and [blank_start]carbon monoxide[blank_end] is made.
Which of the following is not an advantage to hydrogen as a fuel cells (vs petrol/diesel)?
chemical energy is converted straight to electrical energy, compared to a fossil fuel which converts chemical energy to heat energy first (so fewer transfer stages, and less 'lost' energy)
there are less pollutants - in fact no pollutants, as water is only product
rechargeable batteries have a limit on how many times they can be recharged, whereas fuel cells can keep going as long as they're refilled
currently hydrogen gas is produced from hydrocarbons, or electrolysis of water (requires use of electricity, generally powered by burning fossil fuels)
Rising temperatures due to the increase of [blank_start]carbon dioxide[blank_end] and methane in the atmosphere will lead to:
ice at the South Pole and in glaciers will melt, causing global sea levels to [blank_start]rise[blank_end] - this will lead to increased, and/or permanent [blank_start]flooding[blank_end] in some areas
animals will move away from their 'natural' habitats to find [blank_start]cooler[blank_end] areas to live, and some plants/animals may become [blank_start]extinct[blank_end] if they cannot survive the warmer temperatures
weather patterns will begin to change with some areas becoming [blank_start]drier[blank_end], and others much wetter - and even more extreme weather events like more frequent severe [blank_start]storms[blank_end] and heat waves/droughts
wildlife, and growth of [blank_start]crops[blank_end], will be affected by the ever-changing weather systems
as more carbon dioxide is released, more will [blank_start]dissolve[blank_end] into water systems lowering the [blank_start]pH[blank_end] - more acidic waters can harm the organisms that live in them
The oldest temperature records for central England date back to 1659, but cannot be used to assess global temperature changes as they are only from one place. Temperature records from around the world have only existed from about 1880. These measurements were also not very accurate.