1521: Haemoglobin is dissolved in the plasma of
(a) frog
(b) fish
(c) man
(d) earthworm
1522: A universal donor has the blood group belonging to:
(a) A
(b) B
(c) O
(d) AB
1523: Isotopes of the same element differ in the number of:
(a) Protons
(b) Neutrons
(c) Electrons
(d) Positrons
1524: Lake Sambhar is nearest to which one of the following cities of Rajasthan?
(a) Bharatpur
(b) Jaipur
(c) Jodhpur
(d) Udaipur
1525: Assertion (A):
During the year 2001 - 02, the value of India's total exports declined, registering a negative growth of 2.17%.
Reason (R):
During the year 2001 - 02, negative growth in exports was witnessed in respect of iron and steel, coffee, textiles and marine products.
(a) Both A and R are individually true and R is the correct explanation of A
(b) Both A and R are individually true but R is NOT the correct explanation of A
(c) A is true but R is false
(d) A is false but R is true