In the following passage some words have been deleted. Fill in the blanks with the help of the alternatives given. Select the most appropriate option for each number.
The Amazon is the world’s largest tropical rainforest. It is (1)______ the size of the continent of Australia and covers (2)______ area of nearly 2.8 million square miles. The Amazon rainforest gets its life from the (3)______ Amazon River which runs through the heart (4)______ the region. The rainforest is simply the drained basin for the river and its (5)______. The vast forest consists of four layers, each featuring its own ecosystems and specially adapted plants and animals.