Carbon dioxide and oxygen
Answer:
B. Rock Layers
Explanation:
The definition is a layer or a series of layers of rock in the ground.
It is unsafe because it could give the baby defects.
Answer:
As light intensity increases (distance between lamp and plant decreases) the volume of oxygen (or the rate of bubble production) increases. This indicates that the rate of photosynthesis increases with light intensity. However, at sufficiently high levels of light intensity, the rate oxygen evolution remains constant.
