Unit 7: Environmental Protection

hệ sinh thái

• habit

• habitat

• ecosystem

• greenhouse

sự ô nhiễm

• environment
• pollution
• beauty
• population

habitat

• môi trường sống

• hệ sinh thái

• loài

• tuyệt chủng

sự tuyệt chủng

• pollution

• extinction

• habitat

• population

They announced an analys is of the carbon ______________ of leading companies.

• A. spaces    

• B. contents      

• C. emissions            

•     D. footprints

Joey was playing the guitar .................... Danny was washing the dishes.

• while

• if

• so

• or

I lock my bicycle ____ going to class.

• before

• while

• because

• who

coral

• chất độc

• san hô

• nước thải

• hệ thống

Don't go out ___ you've finished your work.

• until

• while

• where

• because

People all over the world are working to help save _______ animals from extinction.

• danger

• endangered

• dangerous

• dangerously