VVULLI
1
раптец ру
Exercises
292
Let's Answer
A. Tick (/) the correct answer.
1. What do we need to breathe?
a. Water
b. Air
d. None of these
c. Milk
2. Which of the following gases supports burning?
a. Nitrogen
b. Carbon dioxide
C. Oxygen
d. Helium
3. Space shuttles orbit in
a. troposphere
b. stratosphere
c. mesosphere
d. thermosphere
4. The rate of sedimentation can be improved by adding
a. sugar
b. mud
C. water
d. alum
5. Which of the following methods is used to get the purest form of water?
a. Sedimentation b. Distillation
c. Decantation
d. Filtration
Answers
Answered by
0
- air
- oxygen
- stratosphere
- water
- filtration
please mark me as a brainlist
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