Page 188 - New Medley 2_Semester 2
P. 188
Test Yourself
A. Tick (3) the correct answer.
1. Do plants need air?
a. yes b. no
2. is required for burning.
a. water b. air
B. Answer these questions.
1. What is wind?
2. Can plants live without air?
3. Why does a balloon become larger when it is blown?
C. Think and Answer ∙ Critical thinking
Why is fresh air good for us?
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