Biology

The correct answer is: B.There is too much carbon dioxide in the atmosphere.

Explanation:

Global warming is primarily driven by the increased concentration of greenhouse gases, especially carbon dioxide (CO₂), in the atmosphere. These gases trap heat from the sun, preventing it from escaping back into space, which causes the Earth's surface temperature to rise. The burning of fossil fuels (like coal, oil, and gas), deforestation, and industrial activities are the main human-driven sources of this excess carbon dioxide.

Why the other options are incorrect:

A.The earth is too close to the sun: The Earth’s distance from the sun has remained stable and does not contribute to the current trend of global warming. The Earth's orbit and distance from the sun do influence long-term climate changes over tho...