Biology
Grade-6
Easy

Question

Which of the following is a physical barrier?

  1. Which of the following is a physical barrier? 

  2. A lake

  3. Mountain ranges

  4. All of the above

hintHint:

Physical barriers are structural obstacles in natural or manmade environments that prevent or block mobility (moving around in the environment) or access of individuals.

The correct answer is:

All of the above


    • Physical barriers are structural obstacles in natural or manmade environments that prevent or block mobility (moving around in the environment) or access.
    • Time, Place, Space, Climate, and Noise are the major environmental / physical barriers.
    • So lake, mountain ranges are physical barrier.

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