Question

1. choose the correct answer.

how does using public transportation help reduce air pollution?
it reduces exhaust in the air.
it increases energy consumption.
it increases the number of cars on the road.
it has no effect on air pollution.

1. choose the correct answer.

how can factories reduce their contribution to air pollution?
by releasing more heat into the atmosphere
by using energy from the sun, wind, or water
by increasing their use of coal and gas
by using more energy

Explanation:

Question 7

Public transportation carries more people per vehicle, so fewer individual cars (which emit exhaust) are on the road. Reducing exhaust in the air matches this. Increasing energy consumption, cars on the road, or claiming no effect are incorrect.

Factories need energy; using renewable energy (sun, wind, water) produces less pollution than fossil fuels (coal, gas). Releasing more heat, using more coal/gas, or more energy increase pollution.

Answer:

It reduces exhaust in the air.

Question 8