General Science QUESTIONS AND ANSWERS

General Knowledge : General Science QUESTIONS AND ANSWERS :: part10 : 51 to 55

Following General Knowledge Multiple choice objective type questions and answers will help you in TRB, SSC and UPSC 2024 examinations :

51.Which of the following weeds has been found useful to check water pollution caused by industrial effluents ?

Parathenium

Elephant grass

Water hyacinth

Both (A) and (B) above

52..................... of the total suns rays reaching the earth is used up by plants in photosynthesis.

10%

25%

33%

53.Ants are always seen moving in a line one after another. They trace the path because of the secretion of chemicals called

detectors

sex hormones

pheromones

None of these

54.Which of the following natural materials contains the largest amount (90%) of cellulose ?

Wood

Silk

Cotton

None of these

55.Which of the following refers to Green Manure ?

Putting farmyard manure

Putting NPK manure

Applying slurry manure obtained from gobar gas plants

Growing leguminous crops and ploughing it.

More General Science QUESTIONS AND ANSWERS available in next pages

Health is the greatest gift, contentment is the greatest wealth -Buddha

Too many of us are not living our dreams because we are living our fears.- Les Brown

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