UNIT 5

Poor waste management has a negative ______ on the environment.

• impact

• cause

• reason

• balance

Renewable energy sources offer a ______ alternative to fossil fuels.

• sustainedly

• sustainability

• sustainable

• sustain

The city produces 20 million tons of household _______ each year.

• pollution

• waste

• globalization

• activity

Carbon dioxide is produced in huge amounts when_______ are burned.

• greenhouse gas

• deforestation

• power plant

• fossil fuels

Our research measures the impact of_______ on this particular eco-system.

• human activity

• sea level

• greenhouse gas

• global warming

A strong greenhouse effect will warm the oceans and partially melt glaciers, increasing _______.

• temperature

• sea water

• sea level

• pollution

The problem with fossil fuels is that they are not _______.

• certain

• serious

• limited

• renewable

Nonrenewable energy has negative _____ on the environment.

• impact

• benefit

• quality

• warning

People will mainly use _____ fuels such as wind and sun energy for transport.

• fossil

• nonrenewable

• effective

• renewable

_____ include coal, oil and natural gas.

• Pollutants

• Renewable energy

• Fossil fuels

• Chemical fertilizers