Climate, Landscapes and Life: The Tropics - Discovery Education

ANSWER KEY for page 17
TEST
Fill in the blank or circle the letter for the correct answer to each question.
1. The tropics are between the latitudes of ____________ north of the equator and ____________ south of the equator.
a) 15.5˚; 15.5˚
b) 20.5˚; 20.5˚
c) 23.5˚; 23.5˚
2. Since the sun rises and sets ____________ throughout the year in the tropics, there is (____________ seasonal change in the length of days
and nights.
a) at radically different times; a significant
b) at approximately the same time; little
c) at the same time; no
3. In the rainforest, the forest floor is ____________ because ____________ .
a) sparsely vegetated; only a little light penetrates the canopy of trees
b) heavily covered with grass and shrubs; debris from the trees generates an extremely fertile soil
c) completely bare of vegetation; no rain can get through the canopy of trees
4. The predominant type of subsistence farming practiced in the rainy tropics is ____________ , also known as ____________ .
a) kelp farming; hydroponics
b) share cropping; tenant farming
c) shifting cultivation; slash and burn agriculture
5. Natural vegetation in the wet-dry and monsoon tropics varies depending on ____________ .
a) what crops are selling for the highest prices
b) the length and intensity of the dry season
c) the types of fertilizer being used
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