Biomes on Earth have exhibited changes throughout history that have been caused by a variety of factors. Over the past 50 years, the amount of tropical rainforest acreage found throughout the world has decreased from 14.8 billion acres to 8.6 billion acres due to deforestation. What factor is likely most responsible for the changes observed in the world’s rainforests?

Based on the given description above, I believe that the factor that is most likely responsible for the changes observed in the world's rainforests is human activity. Deforestations that resulted in the decrease of tropical rainforests is due to human activities which may include building different infrastructures, etc. Hope this answers your question.

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Larus Larus · Answer 2 · 2018-10-18T12:05:01+02:00

Human activity is probably most responsible for the modifications witnessed in the world's rainforests.

The humans thrive in the rainforests and affect it extremely. The activities like logging have resulted in the loss of almost 137 animal and plant species each day due to deforestation. The activities of humans like the production of toxic by-products, oil spills, and mining incidents, and the continuous dumping of wastes are endangering the rainforests and the species living in there.

The humans also practice the slash and burn agriculture that then results in infertility of the soils and makes vegetation to stop growing. The lack of plants eventually results in an increase of carbon dioxide in the atmosphere, thus, causing global warming.