2416: What causes wind to deflect toward left in the Southern hemisphere ?
(a) Rotation of the earth
(b) Magnetic field
(c) Temperature
(d) Pressure
2417: A hollow sphere of radius R, a hollow cube of side R and a thin circular plate of radius R, made up of the same material, are all heated to 20°C above room temperature. When left to cool in the room, which of them will reach the room temperature first?
(a) Circular plate
(b) Cube
(c) Sphere
(d) All of them will reach the room temperature at the same time
2418: The final product of photosynthesis is:
(a) Carbohydrates
(b) Carbon dioxide
(c) Oxygen
(d) Water
2419: Angora wool is obtained from a breed of
(a) Rabbit
(b) Sheep
(c) Goat
(d) Fox
2420: Photo chemical smog is a resultant of the reaction among.
(a) NO2, O3 and peroxyacetyl nitrate in the presence of sunlight
(b) CO, O2 and peroxyacetyl nitrate in the presence of sunlight
(c) CO, CO2 and NO2 at low temperature
(d) High concentration of NO2, O3 and CO in the evening