Can anybody please help with this question only on the last two columns.
Thankyou

Which element is used in photosynthesis found in atmosphere and fixed by bacteria?

How do antiviral drugs work? in your own words.

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