Download CBSE MCQs for Class 9 Science: Chapter 14 Natural Resources
Review structured MCQ sets for Class 9 Science Chapter 14 Natural Resources. Built according to official CBSE guidelines, these downloadable questions support daily revision and core concept reinforcement.
Chapter-wise Objective Questions: Chapter 14 Natural Resources
Access the complete set of multiple-choice questions for Chapter 14 Natural Resources below. This focused format allows students to isolate specific topics for thorough review and uninterrupted practice alongside official CBSE textbooks.
Question: Soil is a part of
(A) atmosphere
(B) lithosphere
(C) hydrosphere
(D) ionosphere
Answer : B
Question: Maximum air in which we breath is present at
(A) troposphere
(B) stratosphere
(C) ionosphere
(D) mesosphere
Answer : A
Question: Biogeochemical cycles are also known as
(A) sedimentary cycles
(B) gaseous cycles
(C) material cycles
(D) cycles of water
Answer : C
Question: Which of the following is a free living nitrogen fixing bacteria present in soil ?
(A) Azotobacter
(B) Nitrosomonas
(C) Rhizobium
(D) pseudomonas
Answer : A
Question: CO2 and O2 balance in atmosphere is due to
(A) Photosynthesis
(B) respiration
(C) leaf anatomy
(D) photorespiration
Answer : A
Question: The micro-organisms which helps in formation of soil is
a) Lichen
b) Bacteria
c) Moss
d) B and c
Answer : A
Question. If there were no atmosphere around the Earth, the temperature of the Earth will
(a) increase
(b) go on decreasing
(c) increase during day and decrease during night
(d) be unaffected
Answer : C
Question. Outer crust of earth is called ……………..
(a) Outer sphere
(b) Lithosphere
(c) Hydrosphere
(d) None of them
Answer : B
Question. When we breathe in air, nitrogen also goes inside along with oxygen. What is the fate of nitrogen?
(a) It moves along with oxygen into the cells
(b) It comes out with the carbon dioxide during exhalation
(c) It is absorbed only by the nasal cells
(d) Nitrogen concentration is already more in the cells, so itis not at all absorbed
Answer : B
Question. Microorganism living in pond called ………….. which is autotrophic
(a) Crab
(b) Fish
(c) Blue green algae
(d) Fungus
Answer : C
Question. What would happen, if all the oxygen present in the environment is converted to ozone?
(a) We will be protected more
(b) It will become poisonous and kill all living forms
(c) Ozone is not stable, hence it will be toxic
(d) It will allow harmful sun radiations to reach earth and damage many life forms
Answer : B
Question. Rainfall patterns depend on
(a) the underground water table
(b) the number of water bodies in an area
(c) the density pattern of human population in an area
(d) the prevailing season in an area
Answer : B
Question: Nitrogen fixation is
(A) Nitrogen Ammonia
(B) Nitrogen nitrates
(C) Nitrogen Amino acid
(D) Both A and B
Answer : D
Question: Soil erosion can be prevented by
(A) deforestation
(B) afforestation
(C) overgrazing
(D) removal of vegetation
Answer : B
Question: A renewable source of energy is
(A) petroleum
(B) coal
(C) nuclear fuel
(D) trees
Answer : D
Question: Nodules in the roots of legume plants contain
(A) nitrogen fixing bacteria
(B) sulphur fixing bacteria
(C) potassium fixing bacteria
(D) none of the above
Answer : A
Question: Which gas is manly responsible for the depletion of ozone layer ?
(A) oxygen
(B) CFC
(C) Nitrogen dioxide
(D) All of the above
Answer : B
Question: Acid rain mainly contains
(A) nitric acid
(B) hydrochloric acid
(C) Sulphuric acid
(D) (A) and (C)
Answer : D
Question: Plants and animals are known as
(A) biotic resources
(B) Abiotic resources
(C) machines
(D) none of these
Answer : A
Question: Coal is an / a
(A) exhaustible resource
(B) inexhaustible resource
(C) potential resource
(D) none of these
Answer : A
Question: Ozonosphere occurs at height of
(A) 8-10km above poles
(B) 8-10km above equator
(C) 20-26 km above the earth surface
(D) 11-16km above equator
Answer : C
Question: Biosphere is made of
(A) living beings and their remains
(B) living beings, lithosphere, hydrosphere and atmosphere
(C) living beings and lithosphere
(D) living beings, lithosphere and hydrosphere.
Answer : B
Question: Soil erosion can be prevented by
(A) deforestation
(B) afforestation
(C) overgrazing
(D) removal of vegetation
Answer : B
Question: The life supporting zone of the earth is
a) Lithosphere
b) Biosphere
c) Hydrosphere
d) Atmosphere
Answer: B
Question: Depletion of ozone molecules in the stratosphere is due to
a) Halogen compound
b) Fluorine compound
c) Chlorine compound
d) None of the options
Answer: A
Question: On moon the temperature ranges from -190 degree C to 110 degree C. This is due to
a) Water bodies present
b) No bio geo chemical cycle
c) No atmosphere
d) No water bodies present
Answer: C
Question: Life cannot sustain on Mars and Venus because major component in atmosphere is
a) Carbon dioxide
b) Oxygen
c) Nitrogen
d) Ozone
Answer : A
Question: Molecules of proteins contain
a) All of the options
b) Carbon
c) Nitrogen
d) Oxygen
Answer : A
Question: Atmosphere maintain the temperature of earth because
a) It absorbs the heat rays
b) It contains water vapor
c) It reflects the heat rays
d) It hold air, which is bad conductor of heat
Answer : D
Question: Nitrogen fixation can be done by
a) All of the options
b) Industries
c) Rhizobium
d) Lightening
Answer : A
Question: Greenhouse gases are
a) Rhizobium
b) Lightening
c) All of the options
d) Industries
Answer : C
Question: Burning of fossil fuels add
a) CO2, SO2, NO2, gases in air
b) C, SO2, N2, gases in air
c) CH4, CO2, NO2, gases in air
d) CO, SO3, NO3, gases in air
Answer : A
Question. The protein deposited in the dead superficial cells that make the skin epithelium impervious to water is
(a) keratin
(b) elastin
(c) collagen
(d) mucus
Answer : A
Question. In nutrient cycle, minerals tend to be dispersed through
(a) evaporation
(b) assimilation
(c) surface and sub-surface run off
(d) convection
Answer : C
Question. Air, water, and soil is…………………….. component
(a) Biotic component
(b) Abiotic component
(c) A and b both
(d) None of them
Answer: B
Question. Increase harmful substances in air called as……………..
(a) Air pollution
(b) Droplets
(c) Water vapor
(d) None of them
Answer : A
Question. If the carbon dioxide content in the atmosphere is increased then which one of the following would not get affected?
(a) Amount of the heat retained by the environment
(b) Process of photosynthesis in plants
(c) Global warming
(d) Existence of desert plants
Answer: D
Question. Ozone layer is getting depleted because of
(a) excessive use of automobiles
(b) excessive formation of industrial units
(c) excessive use of man-made compounds containing both fluorine and chlorine
(d) excessive deforestation
Answer : C
Question. Total Earth’s surface covered by water is
(a) 75%
(b) 60%
(c) 85%
(d) 50%
Answer : A
Question. Which step is not involved in the carbon-cycle?
(o) Photosynthesis
(b) Transpiration
(c) Respiration
(d) Burning of fossil fuels
Answer : B
Question. Marked temperature changes in an aquatic environment can affect
(a) breeding of animals
(b) more growth of aquatic plants
(c) process of digestion in animals
(d) availability of nutrients.
Answer : A
Question. mog is the mixture of
(a) smoke + CO2
(b) smoke + nitrogen
(c) smoke + fog
(d) smoke + ozone
Answer : C
Question. Through which process is oxygen returned to the atmosphere?
(a) Combustion
(b) Photosynthesis
(c) Respiration
(d) Formation of nitrogen oxides
Answer : B
Question. Which of the following is not a "Greenhouse gas" ?
(a) SO2
(b) CO2
(c) N2O
(d) CH4
Answer : A
Question. The ‘water pollution’ can be defined in several ways. Which of the following statements does not give the correct definition?
(a) The addition of the undesirable substances to water bodies
(b) The removal of the desirable substances from water bodies
(c) A change in pressure of the water bodies
(d) A change in temperature of the water bodies
Answer: C
Question. A pollutant is any substance, chemical or other factor that changes natural :
(a) Geo-chemical cycle
(b) Flora of a place
(c) Balance of our environment
(d) Wild life of a region
Answer: C
Question. Water is ……………….. conductor of heat
(a) Good
(b) Bad
(c) More
(d) Less
Answer : A
Question. Major component of the atmosphere on Mars and Venus is
(a) Carbon dioxide
(b) Oxygen
(c) Nitrogen
(d) Water vapour
Answer: C
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Multiple Choice Questions (MCQs) for Class 9 Science Chapter 14 Natural Resources
About Chapter 14 Natural Resources MCQs for Class 9 Science
Test your conceptual understanding of Chapter 14 Natural Resources with these targeted multiple-choice questions. Designed in alignment with the latest CBSE curriculum for Class 9 Science, these problem sets build accuracy and prepare students for objective exams.
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FAQs
You can get most exhaustive CBSE Class 9 Science Natural Resources MCQs Set 01 for free on StudiesToday.com. These MCQs for Class 9 Science are updated for the 2026-27 academic session as per CBSE examination standards.
Yes, our CBSE Class 9 Science Natural Resources MCQs Set 01 include the latest type of questions, such as Assertion-Reasoning and Case-based MCQs. 50% of the CBSE paper is now competency-based.
By solving our CBSE Class 9 Science Natural Resources MCQs Set 01, Class 9 students can improve their accuracy and speed which is important as objective questions provide a chance to secure 100% marks in the Science.
Yes, Science MCQs for Class 9 have answer key and brief explanations to help students understand logic behind the correct option as its important for 2026 competency-focused CBSE exams.
Yes, you can also access online interactive tests for CBSE Class 9 Science Natural Resources MCQs Set 01 on StudiesToday.com as they provide instant answers and score to help you track your progress in Science.