Question

1) A child pushes a table for 10 minutes, but the object does no
move from its place, then the work done by the child will be -
(a) Positive
(b) Negative
(c) Zero work
(d) None of these
1) Penicillin is-
(a) Antibiotic
(b) Antiseptic
(C) Antigen
(d) Biotic
Which of the following is not a green-house gas?
(a) Methane
(b) Carbon di-oxid
(c) Carbon mono-oxide
(d) Ammonia​

Answer 1

Explanation:

greenhouse gas (sometimes abbreviated GHG) is a gas that absorbs and emits radiant energy within the thermal infrared range, causing the greenhouse effect. The primary greenhouse gases in Earth's atmosphere are water vapor (H. 2O), carbon dioxide (CO. 2), methane (CH. 4), nitrous oxide (N.

Answer 2

Answer:

1)-c)zero work

2)-a)Antibiotic

3)-a)methane