Phosphorus helps plant growth of _____.

1. 1. Leaves
   2. Seeds
   3. Root
   4. None of these

Plaster of Paris is obtained from _____.

1. 1. Brochantite
   2. Gypsum
   3. Chalcanthite
   4. None of these

Rader receives waves called _____.

1. 1. Electromagnetic Waves
   2. Mechanical waves
   3. Radio waves
   4. None of these

Stone used in whitewash _____.

1. 1. Claystone
   2. Stonelime
   3. Sandstone
   4. None of these

Sonar is used to measured _____.

1. 1. The speed of sound
   2. Ocean depth
   3. Water properties of temperature
   4. None of these

The branch of physics which deals with the atomic nuclei is called _____.

1. 1. Nuclear physics
   2. Atomic physics
   3. Particle physics
   4. Modern physics

The longest and largest bone in the human body is _____.

1. 1. Spinal Cord
   2. Humerus
   3. Fibula
   4. Femur

The name of the disease called Lock-jaw is _____.

1. 1. Arthritis
   2. Hypetropia
   3. Tetanus
   4. None of these

Sulfuric acid was prepared by?

1. 1. Johann Glauber
   2. Peregrine Phillips
   3. Jabir bin Hayan
   4. None of these

What is the Closest Planet to Earth?

1. 1. Mars
   2. Venus
   3. Mercury
   4. None of these