Tenses Worksheet For Class 9

Fill in the blanks with an appropriate verb form.

Mumbai …………1………….. (has bagged / have bagged / had bagged) the dubious distinction of generating the largest quantity of e-waste in the country. E-waste ……………2……….. (refer / is referring / refers) to all disposed electrical or electronic products and peripherals. These …………3………… (include / includes / including) computers, cell phones, fax machines, photocopiers and televisions.

E-waste is hazardous because it …………4…………… (contains / containing / contain) over 1,000 different substances, many of which are toxic and ……………5……….. (create / creates / are creating) serious pollution on disposal. Chief among these pollutants ……………6………. (is / are / was / were) lead, cadmium, mercury and polychlorinated biphenyls (PCBs). Lead is ……………7…………. (founding / found / founded) in monitor cathode ray tubes, LCDs, solders, printed circuit boards and lead-acid batteries.

Answers

Mumbai has bagged the dubious distinction of generating the largest quantity of e-waste in the country. E-waste refers to all disposed electrical or electronic products and peripherals. These include computers, cell phones, fax machines, photocopiers and televisions.

E-waste is hazardous because it contains over 1,000 different substances, many of which are toxic and create serious pollution on disposal. Chief among these pollutants are lead, cadmium, mercury and polychlorinated biphenyls (PCBs). Lead is found in monitor cathode ray tubes, LCDs, solders, printed circuit boards and lead-acid batteries.

Tenses worksheets

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