556: Consider the following statements:
1. The Islamic Calendar is twelve days shorter than the Gregorian Calendar.
2. The Islamic Calendar began in AD 632.
3. The Gregorian Calendar is a solar calendar.
Which of the statements given above is/are correct?
(a) 1 only
(b) 1 and 2
(c) 1 and 3
(d) 3 only
557: Consider the following statements:
1. Agricultural soils release nitrogen oxides into environment.
2. Cattle release ammonia into environment.
3. Poultry industry releases reactive nitrogen compounds environment.
Which of the statements given above is/arc correct?
(a) 1 and 3 only
(b) 2 and 3 only
(c) 2 only
(d) 1, 2 and 3
558: Haemoglobin is dissolved in the plasma of
(a) frog
(b) fish
(c) man
(d) earthworm
559: Radio carbon dating process is used to know the age of:
(a) Fossils
(b) Plants
(c) Rocks
(d) All of these
560: The sun derives its energy from:
(a) Nuclear fission reactions.
(b) Nuclear fusion reactions.
(c) Oxidation of helium.
(d) Fission of noble metals.