Light intensity, carbon dioxide concentration and temperature are limiting factors give reasons

light intensity - increase in light intensity increases the rate of photosynthesis up to its optimum level

carbon IV oxide - decrease in amount of CO² decreases the rate of photosynthesis

temperature - increase in amount of temperature increases the rate of photosynthesis up to a certain level where it will get denatured

from the original order (top to bottom) the new order will go

1 (founder)

4 (hawk)

2 (mutate)

3 (next generation)

the correct answer, according to e2020, is the second choice there is an occluded front in region a and a cold front in region b.