They are working to preserve the delicately balanced ___of these wetlands.
A. biodiversity
B. ecosystem
C. environment
D. surrounding
Giải bởi Vietjack
biodiversity (n): sự đa dạng sinh học
ecosystem (n): hệ sinh thái
environment (n): môi trường
surrounding (n): vùng lân cận
=> They are working to preserve the delicately balanced ecosystem of these wetlands.
Tạm dịch: Họ đang làm việc để bảo tồn hệ cân bằng sinh thái của những vùng đất ngập nước này.
Đáp án: B
The area is roped off because the water is seriously polluted.
Fossil fuels which are non-renewable pollute the air and cause air ______.
If wastes are thrown ______, they can cause pollution in water, land and air.
Recycling provides a method of reducing the amount of waste materials that gets to the landfills – thus ______ it less probable for environmental pollution to take place.
We need to cut down on our fuel ____ by having fewer cars on the road.
Choose the best answer to complete each sentence. What this country needs is a ____ policy for investment in science and technology.
The effects of _____ are the environmental and social changes caused (directly or indirectly) by human emissions of greenhouse gases.
Choose the best answer to complete each sentence. The Forestry Commission is responsible for____ over 2 million acres of woodland.
