Prepositions Worksheet For Class 10

Fill in the blanks with an appropriate preposition.

Germs that have been ………………………… space are deadlier than those that stayed behind. Scientists recently took Salmonellas, the germs best known ………………………. food poisoning, to space aboard Space Shuttle STS-115. They wanted to see how space travel would affect the germs. …………………….. (up / with / upon) their return to earth, these germs were used to feed mice. Mice fed …………………….. (by / of / with) space germs were three times more likely to get sick and died quicker than others fed identical germs that had stayed behind ……………………… (in / on / at) earth. The US researchers ………………………. (behind /beneath / under) the project said the experiment may help scientists design better antibiotics on earth.

Answers

Germs that have been to space are deadlier than those that stayed behind. Scientists recently took Salmonellas, the germs best known for food poisoning, to space aboard Space Shuttle STS-115. They wanted to see how space travel would affect the germs. Upon their return to earth, these germs were used to feed mice. Mice fed with space germs were three times more likely to get sick and died quicker than others fed identical germs that had stayed behind on earth. The US researchers behind the project said the experiment may help scientists design better antibiotics on earth.

Fill in the blanks with an appropriate preposition.

Willis Haviland Carrier, an engineering graduate …………………… (at / from / with) the Cornell University was the first to invent an air conditioning system. He built the first machine ………………………. (in / on / at) 1902. Any system that lowers temperature works ………………………. (on / at / in)  a similar fashion.

Answers

Willis Haviland Carrier, an engineering graduate from the Cornell University was the first to invent an air conditioning system. He built the first machine in 1902. Any system that lowers temperature works in a similar fashion.