2151: Consider the following:

1. Hotels and restaurants

2. Motor transport undertakings

3. Newspaper establishments

4. Private medical institutions

The employees of which of the above can have the 'Social Security' coverage under Employees' State Insurance Scheme?

(a) 1, 2 and 3 only
(b) 4 only
(c) 1, 3 and 4 only
(d) 1, 2, 3 and 4
2152: Which one of the following satellites is to be launched from India in 1996?
(a) IRS-P2
(b) IRS-P3
(c) IRS-EN
(d) IRS-ID
2153: Consider the following minerals:

1. Calcium

2. Iron

3. Sodium

Which of the minerals given above is/are required by human body for the concentration of muscles?

(a) 1 only
(b) 1 and 3 only
(c) 2 and 3 only
(d) 1, 2 and 3
2154: Which among the following States possesses oil resources based on geographical location?

(a) Kerala

(b) Nagaland

(c) Assam

(d) Meghalaya
2155: In the Union Budget 2011-12, a full exemption from the basic customs duty was extended to the bio-based asphalt (bioasphalt). What is the importance of this material?

1. Unlike traditional asphalt, bio-asphalt is not based on fossil fuels.

2. Bioasphalt can be made from non- renewable resources.

3. Bioasphalt can be made from organic waste materials.

4. It is eco-friendly to use bioasphalt for surfacing of the roads.

Which of the statements given above are correct?

(a) 1, 2 and 3 only
(b) 1, 3 and 4 only
(c) 2 and 4 only
(d) 1, 2, 3 and 4