Exam 6: Climate and Terrestrial Biodiversity

Occasional fires are one factor that keeps shrubs and trees from growing on grasslands.

Which part of a tropical rain forest receives the strongest direct sunlight? 

Which limiting factor is the one that generally controls the vegetative character of a biome? 

A(n)____________________ is classified according to the predominant natural vegetation in the region which is primarily determined by differences in climate.

Tropical rain forests are dominated by broadleaf deciduous plants.

What is the rain shadow effect? 

A cold front is the leading edge of an advancing mass of cold air.

Biomes are distinct regions separated from one another by drastic climate and vegetative differences.

What is the primary limiting factor of the rain forest? 

What poses the least threat to desert ecosystems? 

In the semiarid zones between deserts and grassland are ____________________.

What is the primary reason for the clearing of coniferous forests? 

Temperate deciduous forests are typically located at higher latitudes than coniferous forests.

In which biome would permafrost be a typical characteristic? 

Canadian scientists have divided Canada into ____________________ major terrestrial biomes.

Another word used to describe evergreen coniferous forests is boreal forests.

A low-pressure air mass produces cloudy,and sometimes stormy,weather.

What has led to the disappearance of many of the world's natural temperate grasslands? 

____________________ are large and dangerous storms caused by the formation of low-pressure cells of air over warm tropical seas.

AIR -Which letter in the diagram (E,F or G)corresponds to cool,dry air falling?