7 XĐ - Chữa HW Vocab U10

In some parts of the world nowadays, (15) .......... sources of energy are researched.

5: If we don’t use fossil fuel efficiently, we will ____________ it soon.

10: Many countries are trying to reduce the ____________ of greenhouse gases.

They will become the main sources of power when (16) ............ energy (17) .............

4: The sun and the wind are other ____________ sources of energy.

Our current (12) ............ of fossil fuel will lead to an energy crisis this century.

9: A group of people conducted a research about global warming is called ____________.

7: Turn off electrical devices when you are not using is a simple way to ____________ energy.

3: Hydro power is ____________ because dams cannot be built in certain areas.

At this time in the next decade, we will be driving cars run by (18) ........... power, which comes directly from the sun.

2: ____________ energy is derived from the sun’s rays and it could be converted to electrictiy.

We don’t have suitable methods to (13) ......... this type of energy and it might cause (14) .......... effect to the environment, too.

On the whole, we should not think that natural resouces are always (20) ........... and we have to speed up the research and development of new sources of energy.

6: I decided to cut down on the ____________ of sugar in order to lose weight.

8: Some modern farming methods may have a(n) ____________ impact on the environment.

1: If you carbon ____________ is small, you are environmentally friendly.

Many other (19) ............ friendly products will be used in the near future, too.

In the future, people will be forced to find (11) ............ energy sources.