Задание

Read the article again and match each paragraph (A-G) with its heading (1-8). You can use each heading once. There is one extra heading.

1. Plants to the rescue

2. Warming up cold

3. The science behind it all

4. Friendlier than they sound

5. Strengthening your resistance

6. From one extreme to the other

7. Popular with the people

8. Strange, but may keep you young

A B C D E F G