Read the following passage and mark the letter A, B, C or D on the answer sheet to indicate the correct answer to each of the questions from 23 to 27.
Tropical forests have supplied us with many sorts of plants for food, medicine and industry. They can probably supply man much more. They also reduce floods and droughts, keep water clean, and slow down the Greenhouse Effect. However, the tropical forests are being destroyed to make rooms for things like farms and fields. Besides, forest fires are the most terrible destruction.
About 20 million hectares are lost annually - an area which is twice as big as that of Australia. The World Wildlife Fund (WWF) is working to protect and save the forests that are in danger, to plant new trees for fuel wood and to slow down the Greenhouse Effect. It encourages governments and people to do something for the sake of the tropical forests.

What is the main purpose of the writer when writing this passage?

4. What does the word “its” in the last sentence refer to?

3. How many hours did the 1880 bulb last?

2. Where was Edison’s laboratory?

Read the following passage, and choose the best answer that follow.

Thomas Alva Edison was born in Ohio in 1847. As a child, he received less than a year of formal schooling, but was educated at home. His parents allowed him to set up a laboratory in their basement and his mother gave him books about chemistry and electronics. Edison credits his mother as being ‘the making’ of him.

In 1878, Thomas Edison began serious research into developing a practical incandescent lamp and on October 14, 1878, Edison filed his first patent application for "Improvement In Electric Lights". In 1879 he created a successful incandescent light bulb. This was his hardest project – from 1877 to 1880, Edison and his assistants tried around 3000 experiments to perfect their light bulb design. By the end of 1880, Edison had produced a bulb that lasted 1500 hours. This discovery marked the beginning of commercially manufactured light bulbs and in 1880, Thomas Edison’s company, Edison Electric Light Company began marketing its new product.

5. What did her parents do?

4. How long did she travel in the space shuttle Challenger?

3. When did she become America’s first spacewoman?

2. What does she look like?

1. Who is America’s first spacewoman?