Q: Plants absorb most part of water needed by them through their
(a) : stem
(b) : root hairs
(c) : leaf
(d) : bark
(e) : None
Answer: root hairs
Explanation:
Explanation:
Q: On average, Air contains ________ % of water vapour.
(a) : 1
(b) : 3
(c) : 5
(d) : 7
(e) : None
Answer: 1
Explanation:
Explanation: