In the question given below, there are two statements marked as Assertion (A) and Reason (R). Read both the statements carefully and choose the correct alternative from the following. Assertion (A): Photosynthesis takes place in all green plants. Reason (R): Chlorophyll is essential for photosynthesis.

An assertion and a reason are given below. Assertion: The phenomenon of nuclear fission generates great energy. Reason: The process in which a nucleus is broken into two parts is called nuclear fission. Choose the answer. A. Both Assertion and Reason are true and Reason is the correct explanation of Assertion. B. Both Assertion and Reason are true but Reason is not the correct explanation of Assertion. C. Both Assertion and Reason are false. D. Assertion is true but Reason is false.

A

B

D

C

B

D

C

The use of energy from sunlight by plants doing photosynthesis is the basis of life on earth. Which of the following statement is correct for photosynthesis? 1. chlorophyll (green pigment of the leaf), light, and CO2 are required for photosynthesis to occur. 2. photosynthesis occurs only in the green parts of the leaves in the presence of light. 3. chlorophyll is the chief pigment associated with photosynthesis.

A

1 and 2 Only

B

2 and 3 Only

C

1, 2 and 3

D

1 and 3 Only

In the question given below, there are two statements marked as Assertion (A) and Reason (R). Read both the statements carefully and choose the correct alternative from the following. Assertion (A): Ventilators are provided near the roof. Reason (R): Conduction takes place better near the roof.

A

Both A and R are true and R is the correct explanation of A.

B

Both A and R are true but R is not the correct explanation of A.

C

A is true but R is false.

D

A is false but R is true.

E

Both A and R are false.

Consider the following statements.
1. Carbon dioxide, chlorophyll and sunlight all are essential for photosynthesis.
2. Rate of photosynthesis is maximum in red light and minimum in green light.
3. Increase in O₂ concentration decrease photosynthesis.
Which of the statements given above is/are correct about photosynthesis ?

A

1, 2 and 3

B

1 and 3

C

1 and 2

D

2 and 3

In the question given below, there are two statements marked as Assertion (A) and Reason (R). Read both the statements carefully and choose the correct alternative from the following. Assertion (A): Buddha left his home after his marriage. Reason (R): He wished to be free of all worldly ties and become an ascetic.

A

Both A and R are true and R is the correct explanation of A.

B

Both A and R are true but R is not the correct explanation of A.

C

A is true but R is false.

D

A is false but R is true.

E

Both A and R are false.

In the question given below, there are two statements marked as Assertion (A) and Reason (R). Read both the statements carefully and choose the correct alternative from the following. Assertion (A): Natural environment plays a great role in the existence of life on earth. Reason (R): It helps human beings, animals and other living things to grow and develop naturally.

A

Both A and R are true and R is the correct explanation of A.

B

Both A and R are true but R is not the correct explanation of A.

C

A is true but R is false.

D

A is false but R is true.

E

Both A and R are false.

In the question given below, there are two statements marked as Assertion (A) and Reason (R). Read both the statements carefully and choose the correct alternative from the following. Assertion (A): A rainbow forms in the sky only after rains. Reason (R): Water drops suspended in the air break up sun's rays into seven colors.

A

Both A and R are true and R is the correct explanation of A.

B

Both A and R are true but R is not the correct explanation of A.

C

A is true but R is false.

D

A is false but R is true.

E

Both A and R are false.

In the question given below, there are two statements marked as Assertion (A) and Reason (R). Read both the statements carefully and choose the correct alternative from the following. Assertion (A): India has a tropical monsoon type climate. Reason (R): India is not located exactly between the tropical latitudes.

A

Both A and R are true and R is the correct explanation of A.

B

Both A and R are true but R is not the correct explanation of A.

C

A is true but R is false.

D

A is false but R is true.

E

Both A and R are false.

In the question given below, there are two statements marked as Assertion (A) and Reason (R). Read both the statements carefully and choose the correct alternative from the following. Assertion (A): Plastic pollution is a prime contributor to the pollution of the environment. Reason (R): Plastic bags those are not disposed of properly.

A

Both A and R are true and R is the correct explanation of A.

B

Both A and R are true but R is not the correct explanation of A.

C

A is true but R is false.

D

A is false but R is true.

E

Both A and R are false.

In the question given below, there are two statements marked as Assertion (A) and Reason (R). Read both the statements carefully and choose the correct alternative from the following. Assertion (A): Cotton is grown in alluvial soils. Reason (R): Alluvial soils are very fertile.

A

Both A and R are true and R is the correct explanation of A.

B

Both A and R are true but R is not the correct explanation of A.

C

A is true but R is false.

D

A is false but R is true.

E

Both A and R are false.

Related Questions