General Quiz 17.09.2020

Which one of the following is not a chemical change ?

• Burning of coal in air

• Fermentation of sugarcane juice

• Cracking of petroleum

• Crystallization of table salt from sea water

Yellow Vein Mosaic is a serious disease of

• Brinjal

• Okra

• Pea

• Cabbage

Dolomite powder is applied in some agricultural lands. The purpose of applying it is to

• Increase the pH of the soil

• Lower the pH of the soil

• Increase the phosphorus content of the soil

• Increase the nitrogen content of the soil

Black soils is ideal for cultivation of cotton as

• its colour is black

• it can retain moisture

• it is made up of lava

• it is found on plateau regions

How many steps do you need to climb and reach the main seminar hall?

• 5

• 30

• 45

• 70

Leaf Curl disease in Okra(Lady finger) is caused by

• White fly

• Fungus

• Bacteria

• Virus

What is the source of energy in Ecosystem?

• Solar radiation

• Cosmic radiation

• Geothermal energy

• All of these

Which one of the following is estimated by the radio carbon dating?

• Age of the human being

• Age of the fossils

• Disease of the human body

• Purity of the metals

Which one of the following is not a component of conducting tissue in plants?

• Fibres

• Tracheids

• Pericycle

• Sieve tubes

Select the correct non-renewable source of energy

• Hydel

• Thermal

• Solar

• Wind power