71.

Precipitation in the form of a mixture of rain and snow is called

• Drizzle

• Hail

• Sleet

• Sleet

A fresh egg when placed in salt water will

• sink and go to the bottom

• sink but will not go to the bottom

• float

• float

Which of the following is least likely to be an effect of global warming?

• Increased frequency of hurricanes

• Loss of fertile delta region as for agriculture

• Decreased rate of photosynthesis in vegetation

• Decreased rate of photosynthesis in vegetation

Which of the following is not a nitrogenous fertilizer?

• Ammonium sulphate

• Urea

• Ammonium nitrate

• Ammonium nitrate

Alfalfa is the name of a .............

• Mineral

• Tribe

• Grass

• Grass

The chemical that is used to ripen mangoes is

• Calcium sulphide

• Calcium carbide

• Calcium carbonate

• Calcium carbonate

The main protein found in milk is .............

• Albumin

• Globulin

• Globin

• Globin

The most abundant element in the earth's atmosphere is

• Argon

• Nitrogen

• Oxygen

• Oxygen

The group of solar cells joined together in a definite pattern is called a

• Battery

• Solar heater

• Solar cooker

• Solar cooker

Besides CO₂, the other greenhouse gas is

• CH₄

• N₂

• Ar

• Ar