2141: In the given figure, all line segments of the shaded portion are of the same length and at right angles to each other. The same can be cut out of a board of side 10 cm. What is the area of the shaded portion ?
(a) 36 cm2
(b) 48 cm2
(c) 52 cm2
(d) 64 cm2
2142: Which one of the following mountain ranges is spread over only one State in India ?
(a) Aravalli
(b) Satpura
(c) Ajanta
(d) Sahyadri
2143: Which one of the following is the correct sequence of the given towns of Pakistan while moving from the North towards the South?
(a) Islamabad-Gujranwala-Peshawar-Multan
(b) Peshawar-Gujranwala-Multan-Islamabad
(c) Peshawar-Islamabad-Gujranwala-Multan
(d) Islamabad-Multan-Peshawar-Gujranwala
2144: Due to some reasons, if there is a huge fall in the population of species of butterflies, what could be its likely consequence/consequences?
1. Pollination of some plants could be adversely affected.
2. There could be a drastic increase in the fungal infections of some cultivated plants.
3. It could lead to a fall in the population of some species of wasps, spiders and birds.
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
2145: Consider the following countries :
1. Brazil
2. Mexico
3. South Africa
According to UNCTAD, which of the above is/are categorized as "Emerging Economies"?
(a) 1 only
(b) 1 and 3 only
(c) 2 and 3 only
(d) 1, 2 and 3