Question: You are presented with the question "Global warming most threatens the Earth's ability to do what?" and the following answer choices: - Sustain life - reproduce - Melt polar ice caps - growth - protect them - Resist erosion - to move people - Produce fossil fuels Now knowing that if a planet becomes too hot then that planet cannot sustain life and global warming linked to human emissions of heat-trapping gases is changing the planet's climate, choose the best answer.
Answer:
Sustain life