Question
The diagram shows part of the carbon cycle. The arrowheads are missing from the diagram so the direction of movement of carbon is not shown.
How many arrows should point towards the box labelled carbon dioxide in the atmosphere?
(A) 1
(B) 2
(C) 4
(D) 5
▶️Answer/Explanation
Ans: C
Question
The diagram shows part of the carbon cycle.
Which processes reduce or increase carbon dioxide concentration in the atmosphere?
▶️Answer/Explanation
Ans : B
Question
In the carbon cycle, which process uses carbon dioxide?
A combustion
B decomposition
C respiration
D photosynthesis
▶️Answer/Explanation
Ans D
Question
These are processes found in the carbon cycle.
• combustion
• decomposition
• feeding
• photosynthesis
• respiration
How many of these processes release carbon dioxide into the atmosphere?
A 1
B 2
C 3
D 4
▶️Answer/Explanation
Ans C