Prepositions Worksheet For Class 10

Fill in the blanks with an appropriate preposition.

Lead builds ……………………. (on / up / off) in the body ………………… (across / through / over) repeated exposure and has irreversible effects ………………….. (in / on / at) the nervous system, particularly ………………….. (in / on / with) children. Long term exposure ………………….. (of / to / with) cadmium causes damage ……………………. (in / to / of) kidneys and bone structure. Cadmium and its compounds are also known human carcinogens. PCBs suppress the immune system, damage the liver, promote cancer, affect behavior and cause infertility ………………….. (in / on / of) both men and women. Mercury causes damage …………………….. (with / to / for) various organs including brains and kidneys. Developing foetuses are ………………….. (in / on / at) the highest risk.

Throwing e-waste into landfills allows toxins to seep ………………… (in / to / into) groundwater. Incinerators emit toxic air pollutants, including dioxins. Recycling computers is only marginally profitable, so the industry can’t afford to take precautions to protect the environment or their workers.

Answers

Lead builds up in the body through repeated exposure and has irreversible effects on the nervous system, particularly in children. Long term exposure to cadmium causes damage to kidneys and bone structure. Cadmium and its compounds are also known human carcinogens. PCBs suppress the immune system, damage the liver, promote cancer, affect behavior and cause infertility in both men and women. Mercury causes damage to various organs including brains and kidneys. Developing foetuses are at the highest risk.

Throwing e-waste into landfills allows toxins to seep into groundwater. Incinerators emit toxic air pollutants, including dioxins. Recycling computers is only marginally profitable, so the industry can’t afford to take precautions to protect the environment or their workers.