Ishould know this but i dont so um
enzymes are

question 7 options:

lipids

nucleic acids

carbohydrates

steroids

See the answer below

Explanation:

It means that in the Northern Hemisphere, the photosynthetic activities of plants peaks in October and is lowest in May.

Photosynthesis generally involved the fixation of carbon dioxide. The gas combines with other inorganic products like water and radiant energy from the sun to form sugar in plants. Hence, the photosynthetic activity of plants in an area is inversely proportional to the carbon dioxide level of the area. When photosynthesis goes up, the carbon dioxide level in the atmosphere comes down, and vice versa.