1. Why are heavy metals in soil toxic wastes? 2. Why is methane in Arctic ice and in the oceans potentially a problem?
3. What is the scientific word that describes methane-eating bacteria and where are these bacteria found?
4.How do the methane-eating bacteria clean up toxic waste and reduce air pollution?
5. How do the bacteria make fuel that people can use"
6. How have scientists considered using the bacteria to keep methane from entering the atmosphere?

pl help​

significant amounts of nitrogen oxides, carbon monoxide, and other pollution

explanation:

passenger vehicles are a major pollution contributor, producing significant amounts of nitrogen oxides, carbon monoxide, and other pollution. in 2013, transportation contributed more than half of the carbon monoxide and nitrogen oxides, and almost a quarter of the hydrocarbons emitted into our air.

1. b.

2. d.

3. a.

5. d.

6. c.

these are the only ones that i know, i hope this , and good luck.

more words for this could be abiotic and biotic

abiotic: living organisms within an ecosystem

biotic: non-living organisms within an ecosystem