Question

human activities, including the use of fossil fuels, have contributed to global warming and the rise in sea levels. both of these environmental changes are threatening ecosystems and human communities worldwide. how could individuals best cooperate to mitigate this problem?

a. they could make personal choices that help reduce their carbon footprints.

b. they could look at trends in climate change to predict regions of concern.

c. they could increase their use of fossil fuels to help get rid of the problems source.

d. they could agree upon limits for emissions of environmentally damaging substances.

Explanation:

To mitigate global warming and sea - level rise caused by human activities (especially fossil fuel use), we analyze each option:

• Option A: Reducing one's carbon footprint through personal choices (like using public transport, conserving energy) directly helps cut down on greenhouse gas emissions, which is a practical way for individuals to cooperate in mitigation.
• Option B: Looking at climate trends to predict regions of concern is more of a monitoring or research activity rather than a direct mitigation action for individuals.
• Option C: Increasing fossil fuel use would worsen the problem, not mitigate it, as fossil fuels are a major source of greenhouse gases.
• Option D: Agreeing on emission limits is more of a policy - level or collective action by governments or organizations, not something individuals can do on their own to cooperate.

Answer:

A. They could make personal choices that help reduce their carbon footprints.