Which two statements are MAIN ideas of the article?
1. Zero waste is the idea that everything gets reused and nothing is thrown away.
2. Plants and animals use each other's waste as part of nature's zero waste processes.
3. More zero waste programs for people and businesses can help conserve resources.
4. The Zero Waste Institute was founded by a chemist named Paul Palmer in the 1970s.

Cis correct i think

Mars and earth have quite a few things in common. both are  terrestrial planets, both are located within the sun’s  habitable zone, both have  polar ice caps, similarly  tilted axes, and similar  variations in temperature. and according to some of the latest scientific data obtained by rovers and atmospheric probes, it is now known that mars once had a  dense atmosphere  and was covered with  warm, flowing water.

Sorry  i don't understand can you rephrase that