306: Which of the following adds/add carbon dioxide to the carbon cycle on the planet Earth?

1. Volcanic action
2. Respiration
3. Photosynthesis
4. Decay of organic matter

Select the correct answer using the code given below.

(a) 1 and 3 only
(b) 2 only
(c) 1, 2 and 4 only
(d) 1, 2, 3 and 4
307: Ruins of Vijayanagar empire can be seen at:

(a) Hospet

(b) Hampi

(c) Halebid

(d) Madurni
308: There are 6 different letters and 6 correspondingly addressed envelopes. If the letters are randomly put in the envelopes, what is the probability that exactly 5 letters go into the correctly addressed envelopes?

(a) Zero
(b) 1/2
(c) 1/6
(d) 5/6
309: The Hunter Commission was appointed after the

(a) Black hole incident

(b) Jalianwallabagh massacre

(c) Uprising of 1857

(d) Partition of Bengal
310: The Buddhist sculpture and art is found at:

(a) Mahabalipuram

(b) Kanchi

(c) Vijayanagar

(d) Amravati