146: A person X has four notes of Rupee 1, 2, 5 and 10 denomination. The number of different sums of money she can form from them is

(A) 15
(B) 16
(C) 12
(D) 8
147: With reference to the International Union for Conservation of Nature and Natural Resources (IUCN) and the Convention on International Trade in Endangered Species of Wild Fauna and Flora (CITES), which of the following statements is/are correct?

1. IUCN is an organ of the United Nations and CITES is an international agreement between governments.
2. IUCN runs thousands of field projects around the world to better manage natural environments.
3. CITES is legally binding on the States that have joined it, but this Convention does not take the place of national laws.

Select the correct answer using the code given below.
(a) 1 only
(b) 2 and 3 only
(c) 1 and 3 only
(d) 1, 2 and 3
148: Which of the following is/are the possible consequence/s of heavy sand mining in riverbeds ?

1. Decreased salinity in the river
2. Pollution of groundwater
3. Lowering of the water-table
Select the correct answer using the code given below :
(a) 1 only
(b) 2 and 3 only
(c) 1 and 3 only
(d) 1 ,2 and 3
149: Which tax is not levied by the Central Government?

(a) Wealth tax

(b) Profession tax

(c) Income tax

(d) Excise duty
150: Who among the following is known for his work on medicine during the Gupta period ?

(a) Saumilla

(b) Sudraka

(c) Shaunaka

(d) Susrutha