The answer is D. Ecosystems experience change through human activity and natural events
Answer:
<em><u>The Himalayas act as a boon for India as they act as a barrier to cold siberian winds. They give tropical touch to the climate of India. They stop rear-bearing monsoon winds from crossing into Tibet and force the wids to shed their moisture within Indian- subcontinent.</u></em>
The answer is III, raising retirement age and building more schools will not affect this situation very much, while paid maternity leave will help raise the birth rate.
C. Americans had the right to expand their control across the continent.
To cause the reaction, catalysts use the catalytic cycles, decomposition reactions, and combustion cycles.
<h3>What do you mean by a reaction?</h3>
A reaction refers to the chemical process where substances mutually act and are changed into different substances.
Catalytic cycles refer to the multistep reaction that involves the catalysts. It is considered the main method that describes the major role of catalysts.
Decomposition and combustion cycles are also used by the catalysts.
Therefore, A and B are the correct options.
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