Fill in Blanks : (1) substance that spreading pollution is called ....... (2) fullform DDT is

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Environmental Study

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Fill in the Blanks :

$(1)$ The substance that spreading pollution is called .......

$(2)$ The fullform $DDT$ is .......

$(3)$ The area of $10\, km$ to $50\, km$ from the sea level is called .........

$(4)$ Harmful ultraviolet sun radiation come to the earth is blocked by .....

Option A

Option B

Option C

Option D

Solution

pollutant

dichlorodiphenyltrichloroethane

stratosphere

ozone

Standard 11

Chemistry

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