in the polluted environment infectious diseases can be passed easily from one person to another

Global warming has severe impact on water supplies.

Global warming occurs when the greenhouse gases in the atmosphere trap the heat from the sun.

Such unhygienic conditions encourage the spread of diseases.

Deforestation is one of the biggest environmental threats to tát the ecological balance in the world.

As fossil fuel resources are running out, it is important for the government to tát find some types of alternative energy.

Local people have cut down the forests to tát make way for farming.

Because farmers had been informed about the bad effects of chemical fertilisers, they started using them sparingly on their farms.

Global warming is one of the biggest issues facing humans nowadays.

The biggest cause of global warming is carbon dioxide emissions from coal burning power plants.

Global warming effects on people and nature are catastrophic.

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Coal burning releases a large amount of carbon dioxide into the atmosphere.

The demand for cars is increasing rapidly in the modern world.

Forests absorb and capture carbon dioxide from the atmosphere.

The process of forests absorbing carbon dioxide from the atmosphere has been disrupted by the current alarming rate of deforestation.

Flood and drought are two major causes of famine.

Water shortages are likely to tát delay economic growth and damage ecosystems.

It is important to tát maintain the biological diversity of the rainforests.

We may help if we cut down on energy use by using LED lightbulbs and unplug unused electronic devices.

Reusing and recycling glass, plastic, paper and other products help to tát reduce waste and pollution, and conserve natural resources.

The thick layer of global warming gases keeps more heat from the sun, which leads to tát the increase in the earth temperature.