4101: In the structure of planet Earth, below the mantle, the core is mainly made up of which one of the following?
(a) Aluminium
(b) Silicon
(c) Iron
(d) Chromium
4102: Consider the following statements:
1. Biodiversity is normally greater in the lower latitudes as compared to the higher latitudes.
2. Along the mountain gradients, biodiversity is normally greater in the lower altitudes as compared to the higher altitudes.
Which of the statements given above is are correct?
(a) 1 only
(b) 2 only
(c) Both 1 and 2
(d) Neither 1 and 2
4103: Consider the following pairs:
Movement/Organization:
1. All India Anti-Untouchability League
2. All India Kisan Sabha
3. Self-Respect Movement
Leader:
1. Mahatma Gandhi
2. Swami Sahajanand Saraswati
3. E.V. Ramaswami Naicker
4104: The lower Gangetic plain is characterised by humid climate with high temperature throughout the year. Which one among the following pairs of crops is most suitable for this region?
(a) Wheat and cotton
(b) Paddy and Jute
(c) Paddy and cotton
(d) Wheat and Jute
4105: The sensation of fatigue in the muscles after prolonged strenuous physical work is caused by
(a) a decrease in the supply of oxygen
(b) minor wear and tear of muscle fibres
(c) the depletion of glucose
(d) the accumulation of lactic acid