Science Question Bank
for Exam preparation

Q2. Climate represents……

1. The long-term average weather and its statistical variation for a given region
2. Weather averaged over a year
3. It is a measure of variations in the amount of precipitation
4. None of the above

Q3. Who among the following Scientist is associated with the invention of the refrigerator?

1. G. Brousa
2. Harison & Kaitlin
3. William Gas Cogin
4. Einstein

Q4. Consider following statements: I. Green chemistry focuses on effects of chemical pollutants on nature. II. Environmental chemistry focuses on technological approach to prevent pollution. Which statement(s) is/are correct?

1. Only I
2. Only II
3. Both I & II
4. Neither I nor II

Q5. Which of the following device converts chemical energy in to electrical energy?

1. Battery
2. Loud Speaker
3. Solar Cell
4. Electric Motor

Q6. The most visually striking evidence of global warming is:

1. The increased precipitation along the Gulf coast states
2. Highly varying temperature fluctuations felt during the winter months
3. Rapid melting of glacial ice on nearly every continent
4. All of the above

Q7. What is Ecotone?

1. It denotes a mosaic boundaries or inter-digitting zone between two more homogenous vegetation units
2. A term was applied by Erhart to periods of soil formation.
3. It is formed by the interactions among population of living animals and plants.
4. None of the above/ More than the above

Q8. ------------- play a vital role of releasing essential materials from the dead matter and thus maintain a continuous cycle of energy flow and of material.

1. Saprophytes
2. Autotrophs
3. Hetrotrophs
4. None of the above/ More than the above

Q9. Which of the following is the heaviest metal?

1. osmium
2. mercury
3. iron
4. nickel

Q10. Atom is electrically:

1. Positive
2. negative
3. bipositive
4. neutral