Yes, it will effect the entire ecosystem because they if their population begins to decrease than the food population for other animals will begin to decrease henceforth their populations will decrease causing the food population for the killer whale to decrease which means the killer whale population will decrease because they won’t be able to get as much food.
        
             
        
        
        
Answer:
D. Nuclear fusion begins under high pressure.
Explanation:
A star is a giant astronomical or celestial object that is comprised of a luminous sphere of plasma, binded together by its own gravitational force.
Some of the examples of stars are;
- Sun (closest to the Earth)
Stars are typically made up of two (2) main hot gas, Hydrogen (H) and Helium (He). The chronological order in which the formation of a star occur are;
1. Gravity pulls gas and dust together to form dense cores. 
2. A protostar forms as mass increases.
3. Nuclear fusion begins under high pressure.
Hence, the final event that occurs when a star is forming is that nuclear fusion begins under high pressure.
 
        
             
        
        
        
Explanation:
Tall, perennial grasses and herds of grazing herbivores are inhabitants of tropical and temperate biomes and not desert biomes. 
Deserts do not support the growth of perennial grasses and a sustained herd population. 
- A desert is an arid landscape with very little to no rainfall through the years. 
- Plants needs water to manufacture their food and live. 
- Since this condition is absent, they cannot thrive in such biomes. 
- Grazing herbivores needs a lot of grasses to satisfy their foraging and ruminant nature. 
- Since grasses are lacking, they cannot survive. 
learn more: 
Deserts and steppes brainly.com/question/6685795
#learnwithBrainly
 
        
             
        
        
        
1 H2SO4 + 2 NaNO2 ---> 2 HNO2 + 1 Na2SO4
 
        
             
        
        
        
I think it would either be c or d...