The chief food of a mosquito larva is _____.

1. 1. Decaying organic matter
   2. Leaves of plants
   3. Nectar and fruit juices
   4. Micro-organisms found in water

The chief food of a housefly is _____.

1. 1. Leaves of plants
   2. Nectar of flowers
   3. Micro-organisms found in water
   4. Decaying organic matter

The chief food of a male mosquito is _____.

1. 1. Nectar and fruit juices
   2. Decaying organic matter
   3. Leaves of plants
   4. Micro-organisms found in water

Which of the following organisms causes Cholera?

1. 1. Cocci
   2. Virus
   3. Protozoan
   4. Bacillus

Which of the following organisms causes common cold?

1. 1. Cocci
   2. Virus
   3. Bacillus
   4. Protozoan

Which of the following organisms causes Pneumonia?

1. 1. Cocci
   2. Bacillus
   3. Virus
   4. Protozoan

The celebrated scientist Isaac is _____.

1. 1. Dutch
   2. British
   3. Italian
   4. French

Isaac Newton gave _____.

1. 1. Law of Geometry
   2. Law of Planetary Motion
   3. Law of Motion and Law of Gravitation
   4. All of these

Special theory of relativity was proposed by _____.

1. 1. Albert Einstein
   2. Galilee
   3. Robert Hook
   4. Isaac Newton

Heat received by earth from the Sun is knows as _____.

1. 1. Solar heat
   2. Solar radiation
   3. thermal radiation
   4. Insulation