B. Fill in the blanks with the words below fossil, burn, atmosphere, Acid, gather, harmful, emissions 1. ________ (1) is often found in sour foods like lemons and vinegar. 2. The ________ (2) around us is made up of different gases that we breathe. 3. You should be careful not to ________ (3) yourself while cooking on the stove. 4. The ________ (4) from cars can contribute to air pollution. 5. ________ (5) fuels like coal and oil are used to generate electricity. 6. To make a great team, everyone needs to ________ (6) their ideas and share together. 7. Some chemicals can be ________ (7) to our health if we are not cautious.