Will give brainliest, please answer quickly.

Calculate the number of moles of ethane in 100 grams

How does the presence of oxygen affect the chemical pathways used to extract energy from glucose?

The human activities in two locations are described below: location a: rampant use of plastic containers location b: excessive use of pesticides and fertilizers which statement is most likely true? location a will have poor air quality because plastic is biodegradable. location a will experience water scarcity because plastic absorbs moisture. the population of honeybees will increase in location b because production of crops will increase. the population of fish in location b will decrease because the water is contaminated.