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Science Practice Questions — Set 3
10 questions with answers and explanations.
21
Which of the following is a chemical change?
22
What is the main component of natural gas?
23
Which of the following elements is a noble gas?
24
What is the primary function of chlorophyll?
25
Which structure in a plant cell is NOT found in animal cells?
26
What is Newton's first law of motion?
27
Which of the following is a density-dependent factor affecting population?
28
What is the main difference between prokaryotes and eukaryotes?
29
Which gas do plants release during photosynthesis?
30