2581: Standard 18-carat gold sold in the market contains:

(a) 82 parts gold and 18 parts other metals

(b) 18 parts gold and 82 parts other metals

(c) 18 parts gold and 6 parts other metals

(d) 9 parts gold and 15 parts other metals
2582: Tamil Nadu is a leading producer of mill made cotton yam in the country. What could be the reason ?

1. Black cotton soil is the predominant type of soil in the State.

2. Rich pool of skilled labour is available.

Which of the above is/are the correct reasons ?

(a) 1 only
(b) 2 only
(c) Both 1 and 2
(d) Neither 1 nor 2
2583: Which one of the following statements is not correct ?

(a) All echinoderms are viviparous
(b) Round worm has no circulatory system
(c) In bony fishes, swim bladder is usually present
(d) In cartilaginous fishes, fertilisation is internal
2584: Consider the following statements: A Constitutional Government is one which

1. places effective restrictions on individual liberty in the interest of State Authority
2. places effective restrictions on the Authority of the State in the interest of individual liberty.

Which of the statements given above is/are correct?

(a) 1 only
(b) 2 only
(c) Both 1 and 2
(d) Neither 1 nor 2
2585: A man starts walking in the north-easterly direction from a particular point. After walking a distance of 500 metres, he turns southward and walks a distance of 400 metres. At the end of this walk he is situated
(a) 300 metres north of the starting point
(b) 100 metres north-east of the starting point
(c) 300 metres east of the starting point
(d) 100 metres north of the starting point