1920_F3_Characteristics of Tropical Rainforest

Tropical rainforests cover about 6% of the Earth’s surface nowadays.

• A. True

• B. False

Which of the following is NOT a characteristic of the vegetation in tropical rainforests?

• A.The vegetation is densely distributed.

• B. Abundant plant species can be found.

• C.All trees are tall

• D.The number of plants is large.

Most of the tropical rainforests are located around the ___________.

• A. Tropic of Cancer

• B. Tropic of Capricorn

• C. Equator

• D. Arctic Circle

Which of the following is the world’s largest tropical rainforest region?

• A. Southeast Asia

• B. The Congo Basin

• C. East Asia

• D. The Amazon Basin

Which of the following is the climatic characteristic of tropical rainforests?

• A. Small daily range of temperature

• B. There is no dry season

• C. The total annual rainfall is usually over 3000 mm

• D. Mean annual temperature is around 26-28^oC

Rain usually falls in the ___________ in tropical rainforests.

• A. morning

• B. afternoon

• C. evening

• D. night

Which of the following is the main reason for the high temperature in tropical rainforests?

• A. Little cloud amount

• B. Receive large amounts of solar radiation

• C. Small heat loss at night

• D. Vigorous photosynthesis of vegetation

___________ is small in tropical rainforests.

• A. The annual range of temperature

• B. The annual rainfall

• C. The relative humidity

• D. The annual mean temperature

The tree crowns of the ___________ form a dense and continuous layer.

• A. emergent layer

• B. canopy layer

• C. understorey

• D. shrub layer

Which of the following about the layered structure of tropical rainforests is INCORRECT?

• A. Five layers can be identified.

• B. The crowns of trees of young tree layer / understorey are oval in shape.

• C. The trees of the emergent layer are sparsely distributed.

• D. The shrub layer is composed of ferns and herbs.