Question

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Answer 1

Explanation:

1. atmosphere is the

2. brain is covered by a covering called meninges which prevents from injuries

Answer 2

Ans1.The brain is double-protected against injuries and shocks due to the following reasons:

(i) Cranium: The brain is protected inside the bony box called cranium.

(ii) The cerebrospinal fluid: It is present between the meninges of the brain and the cranium.

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