Nitin Sangwan by Environment and Ecology notes pdf 2022
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Nitin sangwan by Environment and Ecology notes pdf 2022:- Today be are sharing Nitin sangwan by Environment and Ecology notes pdf 2022. This Nitin sangwan by Environment and Ecology notes pdf 2022 for upcoming examination like UPSC, SSC CGL, NET, JRF, DSSSB, LIC AAO, VDO, RAS, RPSC, ALL STATE PCS EXAM. Today be are sharing Environment and Ecology notes pdf After reading these, you may refer to the new NCERTS as well. Why new NCERTs? Because they are more graphic and have an interactive style. At times they are more engaging than the older ones and had explained a few topics in a much lucid manner. Beginners are advised to read NCERT as they can understand the basic concepts clearly from it. The candidate may face some difficulty in this stage as it seems very technical.
Nitin sangwan by Environment and Ecology notes pdf 2022 Always keep things manageable. It is not so important that how much you read, but how well you read. Keep in mind that whatever you read, you have to revise that also at times of mains exam. So, limit your study material. These topics like Science and Technology, Internal Security, Environment and Ecology, Geography, history of Modern India, Culture of India and Economy have been included in the notes of Nitin Sangwan.
Nitin sangwan by Environment and Ecology notes pdf 2022 Whenever a student prepares for the Civil Services Examination, the first thing that comes to his mind is what he should study or not, because the UPSC Syllabus is very broad, due to which many students are not sure from where to study. Therefore, if you want to crack this exam, then it is very important for you to take the advice of seniors or toppers along with the right study material. Beginners are advised to read NCERT as they can understand the basic concepts clearly from it. The candidate may face some difficulty in this stage as it seems very technical.
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Environment and Ecology with Answers
Q 1. The Earth summit was organised by
A. UNESCO
B. UNCED
C. WHO
D. UNICEF
Answer: Option B
Explanation : Earth Summit was organised by UNCED i.e. United Nations Conference on Environment and Development in Rio de Janeiro, Brazil in the year 1992. It is also known as Rio Summit and Rio Conference.
Q 2. World Environmental day is celebrated on ________ every year.
A. 01-05-2001
B. 05-06-2005
C. 01-10-2024
D. 01-12-2025
Answer: Option B
Explanation : World Environment Day is held each year on June 5. It is one of the principal vehicles through which the United Nations (UN) stimulates worldwide awareness of the environment and enhances political attention and action.
Q 3. Environment includes
A. Abiotic component
B. Biotic component
C. Oxygen and Nitrogen
D. Abiotic and Biotic component
Answer: Option D
Explanation : Environment includes both Abiotic and Biotic component. Biotic describes a living component of an ecosystem. Abiotic components are non-living chemical and physical factors in the environment which affect ecosystems.
Q 4. The largest ecosystem of earth is
A. Biome
B. Hydrosphere
C. Lithosphere
D. Biosphere
Answer: Option D
Explanation : Biosphere is the single largest ecosystem of the earth. Simply, biosphere is known as the sum of all ecosystems also known as the ecosystem also the zone of life on earth.
Q 5. For which of the following reason, it is necessary to secure a large area for forest?
A. Absorption of carbon dioxide
B. Conservation of wild
C. More rain
D. Ecological balance
Answer: Option D
Explanation : For Ecological balance, it is necessary to secure a large area for forest. In order to maintain ecosystem on land area where human beings have already damaged most of the habitats especially forest biomes, ecological balance can only be maintaine by increasing forest area.
Q 6. Among the following climatic factors, which one has the least effect upon a terrestrial ecosystem?
A. Temperature variation
B. Wind
C. Conditions of sunlight
D. Availability of water
Answer: Option B
Explanation : Among the following climatic factors, Wind has the least effect upon a terrestrial ecosystem. A terrestrial ecosystem is a type of ecosystem found only on biomes. Seven primary terrestrial ecosystems exist: tundra, taiga, temperate deciduous forest, tropical rain forest, grassland, deserts add more information regarding each of these ecosystems.
Q 7. Soil is eroded heavily due to deforestation, it affects the flowing of surface water badly. Which of the following is badly affected by these causes
A. Human Resource
B. Ecological System
C. Climate
D. Local Plants
Answer: Option B
Explanation : Soil is eroded heavily due to deforestation, it affects the flowing of surface water badly. Ecological System is badly affected by these causes. An ecosystem or ecological system is the base of habitats of species. In an ecosystem biotic beings (living organisms) interact with abiotic beings (non living things). Deforestation leads to soil erosion vanishing the habitats thus damaging ecosystem.
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Environment and Ecology Question Answer
Q 7. Biological indicator of pollution of sulfur dioxide is: –
(A) moss
(B) smoke
(C) Braophyta
(D) None of these
Answer : A
Q 8. An aquatic plant was introduced to the US to remove pollution in Indian aquatic bodies as a troublesome weed. what is its name?
(A) hawthorn
(B) Egiolps
(C) hyacinth
(D) Pistia
Answer : B
Q 9. Which award is given to those who show indomitable courage in the field of wildlife conservation?
(A) Indira Gandhi Environment Award
(B) Medini Award Scheme
(C) Amrita Devi Bishnoi Award
(D) Pitambar Pant National Award
Answer : C
Q 10. The Cartagena protocol is about safe use, transfer and handling?
(A) nuclear waste
(B) invasive alien species
(C) Modified Living Organisms (LMO)
(D) None of these
Answer : B
Q 11. Who is the Chairman of Western Ghats Ecology Expert Panel (WGEEP)?
(A) R • K • Pachauri
(B) Vandana Shiva
(C) Madhav Gadgil
(D) Pradeep Krishnan
Answer : C
Q 12 Which of the following multilateral conference is meant to protect human health and the environment from sustainable organic pollutants?
(A) bone conference
(B) Stockholm Conference
(C) Rotterdam Conference
(D) Basel Conference
Answer : B
Q 13. Which one of the following organisms has a role in converting nitrates to free nitrogen?
(A) Pseudomonas
(B) Nitrosomonas
(C) Nitrobacter
(D) Rhizobium
Answer : D
Q 14. Octopus belongs to the phylum
(A) Echinodermata
(B) Nideria
(C) Mollusca
(D) Chordata
Answer : C
Q 15. All green plants and certain blue-green algae which can produce food by photosynthesis are called the_____.
(A) Consumers
(B) Producers
(C) Decomposers
(D) Bacteria
Answer : B
Q 16. Electron gun is the main part?
(A) Cathode Ray Isoloscope
(B) Transistor tester
(C) Single Generator
(D) All of the above
Answer : A
Q 17 Refrigerators have a relay?
(A) Magnetic type
(B) by simple switch
(C) Non-magnetic
(D) All of the above
Answer : A
Q 18. What is the coupling of primary and secondary coils in transformer?
(A) Electrical
(B) Mechanical
(C) Magnetic
(D) All these
Answer : C
Q 19. Are secondary electrical devices?
(A) Depleting torques
(B) Containing torque
(C) Damping torque
(D) All these
Answer : D
Q 20. In the nitrogen cycle, soil nitrates are converted into free nitrogen by whom?
(A) nitrifying bacteria
(B) denitrifying bacteria
(C) ammonifying bacteria
(D) None of these
Answer : B
Q 21 The relationship between the water fern Azola and the cyanobacterium Annabena is: –
(A) symbiotic
(B) mutual
(C) Survival
(D) Proto-support
Answer : A
Topic Related PDF Download:- Environment and Ecology
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