SST: The Environment

Everything that surrounds us in our ________.

• atmosphere
• environment
• surroundings
• setting

The addition of harmful substances in the environment is called ______.

• contamination
• defilement
• pollution

The harmful substances which are added to the environment are called ______.

• toxins
• contaminants
• pollutants

Pollution affect ______, _______ and _______.

• air, water, and land
• health, economy, and society
• trees, animals, and buildings

______, _____, ______ and _______ are four types of pollution.

• Air

  Water

  Land

  Noise

• Oxygen

  Nitrogen

  Land

  Noise

• Air

  Water

  Oxygen

  Nitrogen

When harmful gases, smoke, pollen and dust particles mix with air and make it dirty. It is called ______.

• Air pollution
• Atmospheric impurity
• Air contamination

Discharge of harmful substance into water bodies is called ______.

• Air pollution
• Water Pollution

• Noise Pollution

Release of harmful substances or their accumulation on land is called ______.

• Land pollution

• Water Pollution

• Noise Pollution

The presence of continuous, loud and unpleasant sound in our environment is _____.

• Land pollution

• Water Pollution

• Noise Pollution

True or False.

Only living things make up our environment.

• True

• False