Choose the best answer.

Some aquatic creatures find it difficult to _______in high temperature.

Choose the best answer.

Water pollution can put negative _________ on our health.

Choose the best answer.

Water pollution has _______ many diseases for plants, animals and especially people.

Choose the best answer.

Ships spill oil in oceans and rivers. This leads ________ the death of many aquatic animals and plants.

Choose the best answer.

Households pollute water sources by _______ waste into ponds, lakes, and rivers.

Choose the best answer.

To protect the environment, we should use more _______ sources of energy as wind and solar power.

Choose the best answer.

The soil becomes ________ because of the use of so many pesticides and fertilizers.  

Choose the best answer.

People believe that the _______ water has brought cancer to the local residents.