UPSC NCERT ENVIRONMENT NOTES: TOPIC WISE SOLVED MCQ’s

Analyzing the IAS exam pattern, it is evident that candidates should have clear understanding concepts and this is possible through daily IAS preparation.

To assist you HimalaiIAS coaching is to come up with UPSC subject wise most important &

expected IAS prelims questions series with the answer explanation.

You can assess your everyday learning and keep in check with your IAS planning and preparation.

We are also providing our daily program list so you can keep track of our Himalai IAS question series updates.

HIMALAI ONLINE TEST COMING SHORTLY

The most awaited Himalai online IAS test series is coming up shortly. With more than 20 years of experience, Himalai IAS coaching has become one of the pioneers in understanding UPSC exam requirements. These exclusive mock tests are a complete package of UPSC expected questions, answers and an in-depth explanation of each topic prepared by experts with years of IAS coaching experience. Himalai IAS coaching test series will assess your daily IAS preparation and will be the guiding light throughout your IAS journey. To know more register to Himalai.

1. Consider the following statements:

1. Osmotic potential in the roots of plants causes water to enter the roots from the soil.

2. With an increase in the negative values of water potential, the water availability to plants is increased.

Which of the above-given statements is/are correct?

a) Only 2          b) Only 1                      c) Both 1 and 2             d) Neither 1 nor 2

Ans:     B

 

2. With reference to ‘Soil’, consider the following statements:

1. It is composed of minerals and partly decomposed organic matter.

2. It is the uppermost weathered layer of Earth’s crust.

Which of the above-given statements is/are correct?

a) Only 1          b) Only 2          c) Both 1 and 2             d) Neither 1 nor 2

Ans:     C

 

3. Consider the following statement:

1. In temperate forest soils, the topsoil has little or no humus.

2. In desert soils, the top horizon is a rich mixture of humus and inorganic soil components.

Which of the above-given statements is/are correct?

a) Only 1          b) Only 2          c) Both 1 and 2             d) Neither 1 nor 2

Ans:     D

 

4. Consider the following statements:

1. Low temperature limits plant growth at higher elevations.

2. Water availability limits plant growth in deserts.

Which of the above-given statements is/are correct?

a) Only 1                      b) Only 2                      c) Both 1 and 2             d) Neither 1 nor 2

Ans:     C

 

5. Consider the following statements:

1. Phenotypic plasticity is the variation among individuals, produced by the influence of the local conditions of the habitat.

2. The physical expression of the interaction between the genotype of an organism and its environment is known as the phenotype.

Which of the above-given statements is/are correct?

a) Only 1                     b) Only 2                      c) Both 1 and 2             d) Neither 1 nor 2

Ans:     C

 

6. Consider the following statements:

1. Heliophytes have high rates of respiration.

2. Sciophytes have higher temperature optima for photosynthesis.

Which of the above-given statements is/are correct?

a) Only 2                      b) Only 1                      c) Both 1 and 2             d) Neither 1 nor 2

Ans:     B

 

7. Which one of the following statements is incorrect?

a) Ferns are shade-tolerant plants.

b) Heliophytes are adapted to the high intensity of light.

c) Sciophytes have low respiratory and metabolic activities.

d) all of the above.

Ans:     D

Leave a Reply

You may use these HTML tags and attributes: <a href="" title=""> <abbr title=""> <acronym title=""> <b> <blockquote cite=""> <cite> <code> <del datetime=""> <em> <i> <q cite=""> <s> <strike> <strong>