Because of the cold temperatures and short growing season trees and other slow-growing plants are unable to survive. In Equator the temperature is hot while in the Poles it is cold. Why Are Tropical Regions Hotter Than Equatorial Regions Science Abc Climate soil the ability of soil to hold water and the slope or angle of the land all determine what types of plants will grow in a. . The elements of climate and natural vegetation include solar radiation temperature atmospheric pressure wind speed and direction humidity and precipitation. What causes biomes and vegetation to change. Equator is an imaginary circle which divides the Earth in half. A closely related and perhaps more common misconception is that the equator is warmer than the poles because the equator is significantly closer to the sun than are the poles ie. The gradient is pretty dramatic for. Forest grassland tundra desert and ice sheet. The gr...