Choose the appropriate heading for 1 

Choose the appropriate heading for 2

Choose the appropriate heading for 3

Choose the appropriate heading for 4

Fill in the blank (NO MORE THAN FIVE WORDS): We know about carbon dioxide and its impact on global warming, but we ________________________.

Fill in the blank (NO MORE THAN FIVE WORDS): Soot comes from the burning of coal, ______________________.

Fill in the blank (NO MORE THAN FIVE WORDS): Black carbon is the ________________________ after carbon dioxide.

Fill in the blank (NO MORE THAN FIVE WORDS): Soot particles can be easily breathed in because they are _________________________.

Fill in the blank (NO MORE THAN FIVE WORDS): People can reduce black carbon emissions at home by using ______________________________ for cooking and heating.