What would happen if photosynthesis on earth stopped?
a)all plants and animals would die due to the absence of oxygen and carbohydrates (glucose) for respiration.
b)all plants would die as they wouldn't be able to produce carbohydrates, while animals would survive because they don't carry out photosynthesis.
c)all plants and animals would survive as they can carry out respiration, despite the absence of photosynthesis.

Which of the following types of stars is most likely to end up as a supernova? in graph a, the curve peaks at 800 nm, in the red section of the visible light spectrum. in graph b, the curve peaks at 550 nm, in the green section of the visible light spectrum. in graph c, the curve peaks at 450 nm, in the blue section of the visible light spectrum. in graph d, the curve peaks at 300 nm, in the violet section of the visible light spectrum. a b c d