Choose the letter A, B, C or D to complete the sentences with given words

About 95%/ the atmosphere/ on Mars/ be/ carbon dioxide, which/ be/ poisonous/ breath

A. About 95% of the atmosphere on Mars is carbon dioxide, which is poisonous to breath.

B. About 95% on the atmosphere on Mars is carbon dioxide, which is poisonous breath.

C. About 95% on the atmosphere on Mars is carbon dioxide, which is poisonous to breath.

D. About 95% of the atmosphere on Mars is carbon dioxide, which is poisonous breath.

Mark the letter A, B, C, or D on your answer sheet to indicate the correct answer to each of the following questions

Carbon dioxide may be absorbed by trees or water bodies, or it may stay in the atmosphere when ______, while it is only in the atmosphere that chloroflouro carbons find their home.

A. by releasing emissions from cars 

B. released from car emissions 

C. cars that release emissions 

D. emissions are released by cars

Choose the letter A, B, C or D to complete the sentences with given words

The/ biggest problem/ for/ humans/ live/ other planets/ be/ lack/ atmosphere and water.

A. The biggest problem for humans to live in other planets is lack of atmosphere and water.

B. The biggest problem for humans living on other planets is lack of atmosphere and water.

C. The biggest problem for humans to living in other planets is lack of atmosphere and water.

D. The biggest problem for humans to live on other planets is lack of atmosphere and water.

Choose the letter A, B, C or D to complete the sentences with given words

The/ biggest problem/ for/ humans/ live/ other planets/ be/ lack/ atmosphere and water.

A. The biggest problem for humans to live in other planets is lack of atmosphere and water.

B. The biggest problem for humans living on other planets is lack of atmosphere and water.

C. The biggest problem for humans to living in other planets is lack of atmosphere and water.

D. The biggest problem for humans to live on other planets is lack of atmosphere and water.

Mark the letter A, B, C, or D on your answer sheet to indicate the sentence that best combines each pair of sentences in the following questions.

The moon doesn’t have the atmosphere, neither does the planet Mars.

A. Neither the moon or the planet Mars has the atmosphere. 

B. Either the moon nor the planet Mars has the atmosphere. 

C. Neither the moon nor the planet Mars has the atmosphere. 

D. Either the moon or the planet Mars has the atmosphere.

1)UFO,which means flying saucer,is the abbreviation for...................................Flying Objecy.(identify)

2)95% of the atmosphere on Mars is carbon dioxide,which is_____________to breathe(poison)

3)NASA has found out that Kepler-62e has some__________________________to Earth(similar)

4)Do you think astronauts feel a great sense of________________________________when they travel alone in space?(lonely)

5)NASA scientists believe the______________________of alien life is not far away from Earth(Egist)