The Amazon is the world’s largest tropical rainforest. It is roughly the size of the continent of Australia and covers an area of nearly 2.8 million square miles. The Amazon rainforest gets its life from the majestic Amazon River which runs through the heart of the region. Amazon is also the second largest river in the world. The rainforest is simply the drainage basin for the river and its tributaries. The vast forest consists of four layers, each featuring its own ecosystems and specially adapted plants and animals.
The forest floor is the lowest region. Since only two percent of the sunlight can filter through the top layers to the understory very few plants grow there. The forest floor, however, is rich with rotting vegetation and bodies of dead animals which quickly break down and get integrated into the soil as nutrients. Tree roots stay close to these available nutrients and decomposers such as millipedes and earth worms use these nutrients for food.
The understory is the layer above the forest floor. Much like the forest floor, only about 2 to 5 percent of the sunlight reaches this shadowy realm. Many of the plants in the understory have large, broadThe layer above the understory is the canopy. This is where much of the action in the rainforest occurs. Many plants growing in this layer have specially adapted leaves with drip tips. Drip tips allow water to flow off the leaves and thus prevent mosses, fungi and lichens from infecting the leaves. Leaves in the canopy are very dense and filter about 80 percent of the sunlight. The canopy is where the wealth of the rainforest’s fruits and flowers grow.
Answer the following questions.
1. Which is the world’s second largest river?
2. How important is the Amazon River for Amazon rainforests?
3. Why do very few plants grow in the understory of the rainforests?
4. Why is there very little air movement in the understory?
5. What is the layer above the understory called?
6. Find the word from the passage which means ‘grand’.
Answers
Answer:
1)Amazon is also the second largest river in the world
2)The Amazon rainforest gets its life from the majestic Amazon River which runs through the heart of the region.
QUESTIONSz
Answer the following questions.
1. Which is the world’s second largest river?
2. How important is the Amazon River for Amazon rainforests?
3. Why do very few plants grow in the understory of the rainforests?
4. Why is there very little air movement in the understory?
5. What is the layer above the understory called?
6. Find the word from the passage which means ‘grand'.
ANSWERS
1. AMAZON RIVER IS THE SECOND LARGEST RIVER IN THE WORLD
,2.The Amazon Rainforest is said to be responsible for as much as 75% of its own rainfall, which feeds the nearby rivers through evapotranspiration. The water from the rivers then flows directly into the ocean, maintaining extremely important ocean currents, and thus controlling the regional climate
3.Since only two percent of the sunlight can filter through the top layers to the understory very few plants grow there. The forest floor, however, is rich with rotting vegetation and bodies of dead animals which quickly break down and get integrated into the soil as nutrients.
4.Many of the plants in the understory have large, broad leaves to collect as much sunlight as possible. The understory is so thick that there is very little air movement. As a result, plants rely on insects and animals to pollinate their flowers. The layer above the understory is the canopy.
5. the layer above the understory called
6. Specially
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