Nature and environment

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

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

…, 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… .