20 POINTS I NEED HELP ILL GUVE U BRAINLIEST BUT MAKE JT YOUR OWN ANSWER. a. How do chemicals contribute both to environmental problems and to
environmental solutions?

Environmental issues such as climate change, water pollution and renewable energy make the news headlines and have become increasingly important in every day life.

Explanation:

(Do not need to add) Many people perceive chemistry and the chemical industry as harmful to the environment. Research in biological sciences and chemistry has revealed that industrial processes in chemistry  could play a role in developing solutions to environmental problems such as climate change.

the leaf is an organ of a typical plant, and the main functions are to complete photosynthesis and allow the plant to exchange gas, just like how we have the respiratory system. leaves have the stomata, which collects maintains co2 and o2 levels. this is necessary for cell metabolism. the leaf also collects sunlight using chloroplasts. succinctly, leaves own a pivotal role in sustaining plant life.

the correct answer to this question is 2