Tag: botany

Questions Related to botany

Sustainable development means planned growth with minimum damage to the environment.

  1. True

  2. False

  3. Nither

  4. Either


Correct Option: A

Electricity is one of the primary needs of human society.

  1. True

  2. False


Correct Option: A
Explanation:

Electricity is one of the primary needs of human society. Electricity is crucial in human life to remove poverty, economic growth, and improved lifestyles. Even low voltage electricity make much difference in the remote areas. Village areas where there is no electricity are facing many difficulties after natural light i.e. when there is no sunlight. They are unable to do their works at home and cannot move in the streets if there are any emergencies like major health issues

So, the correct answer is 'True'

Select the incorrect statement?

  1. Economic development is linked to environmental conservation

  2. Sustainable development encourages development for current generation and conservation of resources for future generations

  3. Sustainable development does not consider the view points of stakeholders

  4. Sustainable development is a long planned and persistent development


Correct Option: C

Among the statements given below select the ones that correctly describe the concept of sustainable development.

  1. Planned growth with minimum damage to the environment

  2. Growth irrespective of the extent of damage caused to the environment

  3. Stopping all developmental work to conserve the environment

  4. Growth that is acceptable to all the stakeholders


Correct Option: A,D

Wireless communication is reflected bank to the earth's surface by the :

  1. troposphere

  2. stratosphere

  3. ionosphere

  4. exosphere


Correct Option: C

Which of the following statements correctly describes the concept of sustainable development?

  1. Development without caring for its impact on the environment

  2. Planned development and growth with minimum damage to environment

  3. Stopping all development work to conserve the environment

  4. Judicious use of environmental factors for developmental activities


Correct Option: B,D

Percentage of photosynthetically active radiation(PAR) that is captured by plants in synthesis of organic matter is?

  1. $50-70\%$

  2. $30-40\%$

  3. $80-100\%$

  4. $2-10\%$


Correct Option: D
Explanation:

About $1-5\%$ of incident solar energy or $2-10\%$ of PAR is captured by the photosynthetic organisms for the synthesis of organic matter(Gross primary productivity). Roughly $20\%$ of it is consumed in respiration so that net capture of energy(net primary productivity) is $0.8-4\%$ of incident radiation or $1.6-8\%$ of PAR.

What is involved in sustainable development?

  1. Economic development

  2. Social development

  3. Environmental development

  4. All of above


Correct Option: D

Utilisation of natural resources in moderate manner to remaining something for the next generation is termed as

  1. Resettlement

  2. Sustainable development

  3. Rehabilitation

  4. Mutual development


Correct Option: B

Loss of water in the form of vapours from the living tissues of aerial plant parts is called _________________.

  1. Transpiration

  2. Guttation

  3. Bleeding

  4. Precipitation


Correct Option: A
Explanation:

The loss of water in the vapour form from the exposed parts of a plant is called transpiration. The loss of water due to transpiration is quite high. It is 22 litre per day in sunflower, 364536−45 litres in apple and upto 11 tonne per day in elm tree.