Textbook questions. Science State Board, Class 9: lessons, tests, tasks.

1.	Choose the correct answer I Difficulty: medium	3
2.	Choose the correct answer II Difficulty: medium	2
3.	State whether true or false. If false, correct the statement I Difficulty: medium	6
4.	State whether true or false. If false, correct the statement II Difficulty: medium	4
5.	Match the following Difficulty: medium	5
6.	Fill in the blanks I Difficulty: medium	3
7.	Fill in the blanks II Difficulty: medium	2
8.	Answer very briefly I Difficulty: medium	4
9.	Answer very briefly II Difficulty: medium	4
10.	Answer very briefly III Difficulty: medium	2
11.	Answer briefly I Difficulty: medium	4
12.	Answer briefly II Difficulty: medium	2
13.	Answer briefly III Difficulty: medium	4
14.	Answer briefly IV Difficulty: medium	5
15.	Answer in detail I Difficulty: medium	5
16.	Answer in detail II Difficulty: medium	5
17.	Answer in detail III Difficulty: medium	5

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Textbook questions