| Statement A: Knives can be built with rocks. |
| Statement B: Polythenes can be made with rocks. |
A) Statement A is correct statement B is wrong.
B) Statement B is correct statement A is wrong.
C) Both the statements are correct.
D) Both the statements are wrong.
Correct Answer: A
Solution :
Only statement A is correct. Knife can be made using obsidian which is an igneous rock. However, polythene is a man-made substance. Polythene is not naturally available from rocks. Therefore, statement B is incorrect.
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