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just olya [345]
3 years ago
12

FREE BRAINLIEST IF CORRECT

Chemistry
2 answers:
Veronika [31]3 years ago
8 0

Answer:

Reflection.

Explanation:

An echo is an example of wave reflection. Reflection occurs when waves bounce back from a surface they cannot pass through.

Hope this helps

tangare [24]3 years ago
6 0

Answer:

reflection because they reflect back for the animals to know what is happening

Explanation:

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Boyle's law States that at constant temperature, the volume of a given mass of a gas is inversely proportional to it's pressure.

From this statement it was deduced that P1V1 = P2V2

From the question, P1 = 1atm, V1 = 1.55L, P2 = 50 atm and V2 is to be calculated.

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