Question

1. when a potted plant is kept near a window from where light is coming in, the stem of the plant will............... (a) grow straight up
(b) grow towards the window (c) grow away from the window
(d) not grow at all
When we exhale air in a test tube containing lime water, the appearance of milky colour indicates that the exhaled air is rich in.................... gas. (a) oxygen (b) carbon dioxide (c) nitrogen
(d) hydrogen​

Answer 1

Answer:

1. option b

2. option b

Thanks

Answer 2

Answer:

1. The potted plant which is kept near the window in the room, grows towards light. And sunlight is coming from window

So, the correct answer is option (b) grow towards the window

2. Lime water is calcium hydroxide solution. On reacting with carbon dioxide it forms insoluble calcium carbonate which remains in water as a suspension rendering a milky white colour to it.

So, the correct answer is option (b) carbon dioxide