General Science Basic Objective Questions Answers - 04 Nov 2014

1. The largest ecosystem of the earth is ________________________.
[A]Biome
[B]Hydrosphere
[C]Lithosphere
[D]Biosphere


2. Supersonic jet causes pollution by thinning of _______________.
[A]O2 layer
[B]SO2 layer
[C]CO2 layer
[D]O3 layer


3. The outermost part of the sun is called _______________.
[A]Photosphere
[B]Corona
[C]Chromosphere
[D]Lithosphere


4. What is the commonly used unit for measuring the speed of data transmission?
[A]Nano seconds
[B]Mega Hertz
[C]Bits per second
[D]Characters per second


5. Which of the following metals causes Itai-Itai disease?
[A]Cobalt
[B]Cadmium
[C]Chromium
[D]Copper