Question

what must be added to the soil?
*(a) Organic matter (b) Quick lime
(c) Slaked lime (d) Calamine solution
4. What will happen if carbon dioxide gas is passed through lime water?
(a) Calcium carbonate is formed
Xb) The lime water turns milky
(c) Both of these
(d) None of these
5. Which of the following inhibits the seepage of rainwater into ground?
(a) A pukka floor (b) playground XC) Grass lawn (d) Forest land
6. Which one of the following is used in vermi-processing toilet?
(a) Earthworm (b) Cockroach (c) Both of these (d) None of these
7. Sludge in separate tanks is decomposed to get biogas by
(a) yeasts (b) aerobic bacteria (c) anaerobic bacteria (d) none of theseव्हिच वन ऑफ द फॉलोइंग इज यूज्ड टू प्रोसेस टॉयलेट ​

Answer 1

Answer:

1- organic matter

4- the lime water turns milky

5- grass lawn

6- both of these

7- aerobic bacteria

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