Question

(A) Multiple choice questions
1. As we grow on the mountains, the air pressure
(a) Increases.
(b) decreases
(c)stays constant (d)none of these
2. A virtual image
(a) can we formed on the screen
(b) cannot be formed on the screen
(c)Can be seen on the screen
(d) can only be formed with a concave mirror
3.Quinine is obtained from
(a) bamboo. (b) neem
(c)teak.
(d)cinchona
4. Im Proper sanitation causes disease such as
(a) night blindness. (b) anaemia
(c) beri-beri.
(d) cholera​

Answer 1

Answer:

1. (a)

2. (c)

3. (d)

4. (b)

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Answer 2

Answer:

1)decrease

2)cannot be formed on the screen

3)cinchona

4)cholera