Ecological quiz (exercise 9, page 65 (WB))

The gradual increase in the Earth's temperature (warmer weather) and the temperature of the oceans is known as «global ... ".

Because of the damages caused by the cyclone, there will be massive ... of food.

We can conserve water by not letting it ... when we are not using it.

Exhaust fumes cause a lot of ... , especially in big cities.

... is much healthier than driving, and it doesn't pollute the air.

... , which is partly caused by exhaust fumes from cars, is a very big problem in many big cities across the world.

Thick forests in the tropical part of the world are known as ... .

Warming of the atmosphere that occurs when certain gases absorb part of the solar radiation reflected by the Earth is called ....

... rain occurs when pollution in the air is absorbed by water droplets in clouds.

Global warming is seen by many as a ... to humanity.

Forests, farmland, and oceans are known as «natural ... ».

One way to reduce the amount of garbage is by ... . This way, a plastic bottle can be melted to create other plastic bottles, a glass bottle can be used to make other glass bottles, etc.

When you recycle, you have to ... paper, plastic, and other types of garbage.

No longer existing animal species are called ... .

The presence in the atmosphere of large quantities of particles or gases produced by human activity that are harmful to both animal and plant life is known as ....