Question

which of the following is true about global warming?
○ global warming melts the glaciers in the north and south poles.
○ global warming provides the best environment for polar bears.
○ global warming is responsible for average rainfall.
○ global warming helps agriculture and human health.

Explanation:

• For the option "Global warming melts the glaciers in the North and South poles": Global warming leads to an increase in global average temperature, which causes the ice and glaciers in polar regions (North and South poles) to melt. This is a well - established scientific fact.
• For the option "Global warming provides the best environment for polar bears": Polar bears depend on sea ice for hunting (such as hunting seals). As global warming melts the sea ice, their habitat and hunting grounds are reduced, so it does not provide a good environment for them.
• For the option "Global warming is responsible for average rainfall": Global warming disrupts the normal rainfall patterns, causing more extreme rainfall events (either too much or too little in different areas) rather than just being responsible for "average" rainfall.
• For the option "Global warming helps agriculture and human health": Global warming causes problems like changes in precipitation patterns, more extreme weather events (droughts, floods, heatwaves), which are harmful to agriculture (affecting crop yields) and human health (heat - related illnesses, spread of diseases).

Answer:

A. Global warming melts the glaciers in the North and South poles.