The greatest seasonal contrast of insolation on the earth is in which of the following latitudinal zones ?
(a) Equatorial (b) Tropical (c) Temperatre (d) polar
Sun emits energy in the form of electromagnetic radiation. The following help in the generation of solar
energy. Arrange them in the right sequence beginning from the starting of the cycle ?
1. Hydrogen is converted to helium at very high temperature and pressure
2. The energy finds its way to sun's surface
3. A vast quantity of energy is generated by nuclear fusion
Select the correct answer using the code given below :
(a) 1-2-3 (b) 2-3-1 (c) 3-2-1 (d) 1-3-2
Radioactive decay provides an internal source of heat for the earth. This helps in the formation of which type
of rocks ?
(a) Igneous (b) Sedimentary (c) Metamorphic (d) All of the above
In India, increase in population and diversion of agricultural land for non-agricultural purposes have resulted
in the decrease of -
(a) forested land (b) cultivable wasteland
(c) net sown area (d) double-cropped area
Consider the following statements regarding osmosis in animal cells -
1. If the water potential of the solution surrounding the cell is too high, the cell shirnks
2. If the water potential of the solution surrounding the cell is to low, the cell swells and bursts.
3. It is important to maintain a constant water potential inside the animal body
4. In animal cells, water potential far exceeds the solute potential
Which of the statements given above is/are correct ?
(a) 1 and 2 (b) 3 only (c) 4 (d) 2 and 3
Consider the following statements in relation to plant tissue 'chlorenchyma' :
1. It is formed by the palisade and spongy mesophyll
2. It is a form of parenchyma which contains chloroplasts.
3. It serves to transport organic solutes made by photosynthesis.
4.It is a thin transparent layer which has chiefly a protective function.
Which of the statements given above is/are correct ?
(a) 1 and 2 only (b) 1, 2 and 3 (c) 2 and 4 (d) 1 only
Consider the following diseases :
1. Cholera
2. Tuberculosis
3. Filaria
4. Typhoid
Which of the above diseases are caused by bacteria ?
(a) 1 and 3 only (b) 2 and 4 only (c) 1, 3 and 4 (d) 1, 2 and 4
Statement I : Indian economy has experienced slower growth rate during the years 2010-11 and 2011-12.
Statement II : Indian economy has experienced weakening industrial growth during the period.
Statement I : The potential energy that results from pushing water above mean sea level is transferred to
kinetic energy that initiates the horizontal propagation of tsunami waves.
Statement II : The vertical displacement of sea water due to abrupt and jerky movements of fault blocks on
seabed gives birth to tsunamis.
Statement I : There is a large-scale fluctuation of oil flow from oil wells prior to earthquakes.
Statement II : Tectonic stress accumulates to a certain level, the pore pressure within a deep oilbearing
stratum reaches its breaking strength causing oil to sprout along the oil wells.