Why is this statement false? the amount of carbon on our entire planet can increase or decrease depending on the fluctuation of the carbon cycle

Ascientist wants to determine the effect of a new type of gasoline. he fillsone car with normal gasoline and another identical car with the new gasoline.which is the control group? a. the new type of gasolineb. the car with the normal gasolinec. the car with the new gasolinethe amount of gasoline usedd. the amount of gasoline used

In the diagram below, the northern hemisphere would be in what season at position a a.fall b. winter c.summer d.spring

Which cell organelle is the site for photosynthesis? a. chloroplast b. endoplasmic reticulum c. golgi apparatus d. lysosome