1194803
Description
Quiz by ildasolha.jamari, updated more than 1 year ago
|
Created by ildasolha.jamari
over 9 years ago
|
|
Question 1
Question
When we breathe in air, our body utilises the following gases:
Answer
-
Nitrogen, oxygen and carbon dioxide.
-
Nitrogen and oxygen only.
-
Oxygen only.
Question 2
Question
Plants only give out oxygen to the environment. It does not take in oxygen.
Answer
-
True
-
False
Question 3
Question
What is the percentage of oxygen in the air?
Answer
-
1%
-
21%
-
78%
Question 4
Question
Why is it an advantage to have water vapour present in the air?
Answer
-
The water vapour makes the air moist and not too dry for us to breathe in.
-
The water vapour breathed in will enter the digestive system to prevent thirst.
-
The water vapour will be used for respiration in the body to produce energy.
Question 5
Question
Which statement is true?
Answer
-
Oxygen is the only useful gas in the air for living things.
-
Nitrogen is the most abundant gas in the air but is useless to living things.
-
Carbon dioxide exists in a small percentage in the air but is useful for living things.
Want to create your own Quizzes for free with GoConqr? Learn more.