Sound becomes hazardous noise pollution at decibels.

Almost 99% of clean air consists of two gases which are

Ozone layer exists in

Ozone layer is being depleted by

Burning trees releases carbon which contributes to accelerating climate change.

Incorrect

___ of the world's medicines are derived from rainforest plants

Supersonic planes cause

How many deaths are there annually as a result of exposure to outdoor air pollution?

Exposure to indoor second hand smoke, dirty cooking fuel, and dampness increases the risk of which infectious disease in children?

Spraying of DDT on crops causes pollution of:

The main source of water pollution is

Which of the following problems is not created by noise pollution?

What is the most common final waste treatment in the UK?

What type of light bulbs should be used if natural daylight is not an option?

Using disposable paper cups is much better than washing mugs after each use.

Recycled plastic bottles can be made into