Air around us Worksheet-9

Air around us Worksheet-9

Fill in the blanks:

1. The _______ is called as the air surrounding Earth.
2. The air around us is made of different _______.
3. We breathe in ________ gas.
4. ________ is termed as the condition of the atmosphere.
5. The _________ layer of the atmosphere gives protection from the ultraviolet radiations of the sun.
6. The addition of substances in the   environment (in quantities) that are harmful to living beings is called _________. 
7. Moving air is called _________.
8. Plants have tiny pores called ________, found on the underside of a leaf.
9. Alligators swim through water with part of their _________ above the water surface to breathe easily through nostrils.
10. Birds have a pair of _________ with air sacs that remain open all the time, so that air can easily pass through them.

Answer:

1. Atmosphere
2. Gases
3. Oxygen
4. Weather
5. Ozone
6. Pollution
7. Wind
8. Stomata
9. Snout
10. Lungs