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1 vote
1. The first forms of life on Earth were ________.

A. plants
B. microorganisms
C. birds
D. dinosaurs

2. A suggested and testable explanation for an event is called a ________.
A. hypothesis
B. variable
C. theory
D. control

3. Which of the following sciences is not considered a natural science?
A. biology
B. astronomy
C. physics
D. computer science

1 Answer

4 votes

Answer:

1. B.microorganisms

2. C.theory

3. D.computer science

User Draykos
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