G8-U7-Getting started- Lesson 1

When ...................... happens, the water temperature in streams, rivers, lakes or oceans changes.

• radioactive pollution

• water pollution

• visual pollution

• thermal pollution

(a)   occurs when the atmosphere contains gases, dust, or fumes in harmful amounts.

When radiation goes into the land, air or water, it is called (a)   .

Too much use of electric lights in cities may cause _______.

• light pollution

• visual pollution

• noise pollution

• land pollution

(a)   happens when human activities destroy the Earth’s surface.

_______ is the contamination of lakes, rivers, oceans, or groundwater, usually by human activities.

• Water pollution

• Radioactive pollution

• Noise pollution

• Thermal pollution

The sight of too many telephone poles, advertising billboards, overhead power lines, or shop signs may cause (a)   .

_______ occurs because there are too many loud sounds in the environment.

• Noise pollution

• Land pollution

• Radioactive pollution

• Air pollution

Tick 2:

"bởi vì + S + V"

• since

• because

• so

• make

Bời vì + V-ing/Cụm danh từ

• because

• due to

• since

• so