Despite the hostile environment, both animals and plants can be found in the oceans and on land

in polar areas. 

• A、True
  
  

• B、False
  
  

• C、Not Given
  
  

Which of the following is NOT mentioned as a common element of theater and ritual?

• A、 Dance.
  
  

• B、 Costumes. 
  
  

• C、 Music.
  
  

• D、 Magic.
  
  

Task 1

16.Paragraph       ①      

17.Paragraph      ③        

18.Paragraph      ④    

19.Paragraph      ⑥                

20.Paragraph      ⑦     

A. Soot's Role in Climate Changes Above Oceans and Land

B. Observations of Warming in the Northern Hemisphere

C. Explanation of Increased Warming Effect Caused by Soot

D. Black Soot in Snow and Icy Areas Leading to Climate Change

E. Black Soot Contributing to Global Warming

F. Greenhouse Gases as the Main Factor of Global Warming