In the process of drying certain kinds of fruits, sulphur fumes help ______.

A. A fifth of all the birds in the world live in the rainforest.

B. 20% of all the animals in the world live in the rainforest.

C. Nearly two million species of insects are found in the Amazon rainforest.

D. Nearly half of the world's species of plants grow there.

A. room

B. process

C. rainforest

D. deforestation

A. chamber

B. flat

C. area

D. studio

A. reduced considerably

B. put a tick

C. examined carefully

D. motivated to develop

A. human-related effects

B. some species

C. low birthrates

D. natural obstacles

A. small flakes

B. fine powder

C. dried soup

D. recognizable pieces