ECOLOGY
BIOMES
|
Question
[CLICK ON ANY CHOICE TO KNOW THE RIGHT ANSWER]
|
|
|
it has four seasons including freezing temperatures
|
|
|
it has thin soil that is nutrient poor
|
|
|
it receives 10-16 inches of rain a year
|
|
|
it is devoid of animal life
|
Detailed explanation-1: -Even though the savanna and the tropical rainforestes are VASTLY different in organisms and extent, they both have a climate that results in deep, highly weathered soils. The intense weathering causes these soils to be nutrient poor and low in organic matter.
Detailed explanation-2: -The tropical rainforest biome has four main characteristics: very high annual rainfall, high average temperatures, nutrient-poor soil, and high levels of biodiversity (species richness).
Detailed explanation-3: -In the rainforest, most of the carbon and essential nutrients are locked up in the living vegetation, dead wood, and decaying leaves. As organic material decays, it is recycled so quickly that few nutrients ever reach the soil, leaving it nearly sterile.
Detailed explanation-4: -There are some commonly misunderstood points about tropical soils in books and museums. Tropical soils may often be described as being thin. This is certainly not so-did you know that tropical soils are among the deepest in the world! Many tropical soils have been under forest cover for millions of years.
Detailed explanation-5: -Tropical rainforest soil is very thin and low in nutrients. With no winters or frosts to kill insects or microorganisms, and with lots of heat and humidity to help them grow and multiply, organic matter such as fallen leaves and twigs decomposes so quickly that only a thin layer of organic material covers the soils.