Choose the correct answer.
1. Green plants need water for-----------.
a. Digestion
b. Respiration
c. Photosynthesis
d. all of these
2. Each water molecule is made up of.
a. Two hydrogen atoms and one oxygen atom
b. three hydrogen atoms and one oxygen atom
c. one hydrogen atom and one oxygen atom.
d. two hydrogen atom and two oxygen atoms
Fill in the blanks
a. Clean drinking water has no or --------------
b. Drinking water is purified by passing it through different tanks -------------.
Answers
Answered by
2
Answer:
1. photosynthesis
2.c is the answer
3.water conservation
b. purification
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