Lithosphere is known as:

• (a) Abiotic component
• (b) Biotic component
• (c) Both (a) and (b)
• (d) Neither (a) nor (b)

Which of the following is a biotic component?

• (a) Soil
• (b) Air
• (c) Animal
• (d) Water

Winnowing refers to:

• (a) Separation of grain from stalk
• (b) Separation of components from mixture
• (c) Separation of large sized impurities
• (d) Separation of water vapour from liquid

Given below are two statements:

Statement I: Force has magnitude as well as direction.
Statement II: Sliding friction is smaller than static friction.

In the light of the above statements, choose the most appropriate answer:

• (a) Both Statement I and Statement II are correct
• (b) Both Statement I and Statement II are incorrect
• (c) Statement I is correct and Statement II is incorrect
• (d) Statement I is incorrect and Statement II is correct

Given below are two statements:

Statement I: The materials which allow heat to pass through them easily are called insulators.
Statement II: The range of temperature in clinical thermometer is from 32°C.

In the light of the above statements, choose the most appropriate answer:

• (a) Both Statement I and Statement II are correct
• (b) Both Statement I and Statement II are incorrect
• (c) Statement I is correct and Statement II is incorrect
• (d) Statement I is incorrect and Statement II is correct

Arrange the following animal products in terms of percent protein from highest to lowest:

(1) Cow milk
(2) Egg
(3) Meat
(4) Fish

• (a) 1, 2, 3, 4
• (b) 2, 4, 1, 3
• (c) 3, 4, 2, 1
• (d) 1, 3, 2, 4

Arrange the following elements in terms of their atomic number from lowest to highest:

(1) Carbon
(2) Oxygen
(3) Sodium
(4) Silicon

• (a) 4, 3, 2, 1
• (b) 3, 4, 1, 2
• (c) 2, 4, 1, 3
• (d) 1, 2, 3, 4

Consider the following statements:

(1) Protozoans cause serious diseases like dysentery.
(2) All microorganisms grow on our food and cause food poisoning.
(3) Microorganisms can live in desert environment.
(4) All microorganisms are useful for commercial production of medicines and alcohol.

• (a) 2 and 4 only
• (b) 1 and 4 only
• (c) 1 and 3 only
• (d) 2 and 3 only

Consider the following statements:

(1) Manure and fertilizers are the main source of nutrient supply to crops.
(2) Inorganic farming is practiced with minimal use of fertilizers and pesticides.
(3) Growing of different crops on a piece of land in pre-planned succession is called intercropping.
(4) Bee-keeping is done to get wax.

• (a) 1 and 2 only
• (b) 3 and 4 only
• (c) 2 and 3 only
• (d) 1 and 4 only

Match List I with List II:

List-I (Vitamin/Mineral):
a. Iron
b. Iodine
c. Calcium
d. Vitamin B1

List-II (Symptoms):
i. Weak muscles
ii. Anaemia
iii. Mental disability in children
iv. Tooth decay

• (a) ii iii iv i
• (b) ii iv iii i
• (c) ii iii i iv
• (d) i ii iv iii

Match List I with List II:

List-I (Quantity):
a. Weight
b. Volume
c. Temperature
d. Pressure

List-II (Unit of Measurement):
i. Cubic meter
ii. Newton
iii. Pascal
iv. Kelvin

• (a) ii iv i iii
• (b) iii iv ii i
• (c) ii iii ii i
• (d) I iii iv ii