A. interdependent
B. interpreting
C. interdisciplinary
D. balanced
✅ The correct answer is option C.
Environmental education should be in interdisciplinary approach.
Environmental education should be in interdisciplinary approach.
General Knowledge
Boost your exam preparation with the latest General Knowledge MCQs with answers and explanations. Our collection covers current affairs, world geography, history, Pakistan studies, sports, science, technology, and important international organizations. These General Knowledge multiple-choice questions are designed for students, job seekers, and competitive exam aspirants preparing for NTS, PPSC, FPSC, CSS, PMS, university entry tests, and recruitment exams. Practice online with updated General Knowledge MCQs to improve awareness, sharpen memory, and score higher in tests and interviews.
1752. In grassland ecosystem, the pyramid of biomass is
A. upright
B. inverted
C. spindle shaped
D. none of these
✅ The correct answer is option A.
In grassland ecosystem, the shape of pyramid of biomass is upright. In grassland ecosystem, the biomass at the base is maximum followed by that in primary consumers (herbivores), followed by that in secondary consumers (carnivores). The base of the pyramid of biomass represents the producers in a pond ecosystem.
In grassland ecosystem, the shape of pyramid of biomass is upright. In grassland ecosystem, the biomass at the base is maximum followed by that in primary consumers (herbivores), followed by that in secondary consumers (carnivores). The base of the pyramid of biomass represents the producers in a pond ecosystem.
1753. Oil spills are a source of pollution for
A. water
B. land and water
C. land and air
D. air and noise
✅ The correct answer is option B.
Oceans are polluted by oil on a daily basis from oil spills, routine shipping, run-offs and dumping. Oil spills are a source of pollution for land and water.
Oceans are polluted by oil on a daily basis from oil spills, routine shipping, run-offs and dumping. Oil spills are a source of pollution for land and water.
1754. The term “Biocoenosis” was proposed by
A. Transley
B. Carl Mobius
C. Warming
D. None of the above
✅ The correct answer is option B.
A biocenosis (UK English, biocoenosis, also biocenose, biocoenose, biotic community, biological community, ecological community, life assemblage,) coined by Karl Möbius in 1877, describes the interacting organisms living together in a habitat (biotope).
A biocenosis (UK English, biocoenosis, also biocenose, biocoenose, biotic community, biological community, ecological community, life assemblage,) coined by Karl Möbius in 1877, describes the interacting organisms living together in a habitat (biotope).
1755. Respiratory roots are known as
A. velamen
B. pneumatophores
C. hydathodes
D. prop roots
✅ The correct answer is option B.
Respiratory or knee roots (pneumatophores) are characteristic of many species; they project above the mud and have small openings (lenticels) through which air enters, passing through the soft spongy tissue to the roots beneath the mud.
Respiratory or knee roots (pneumatophores) are characteristic of many species; they project above the mud and have small openings (lenticels) through which air enters, passing through the soft spongy tissue to the roots beneath the mud.
1756. A small quantity of __________ material can produce an enormous amount of energy
A. Metallic
B. Non-metallic
C. Radioactive
D. Conductive
✅ The correct answer is option C.
A small quantity of radioactive material can produce an enormous amount of energy.
A small quantity of radioactive material can produce an enormous amount of energy.
1757. A red shirt
A. Selectively absorbs red wavelenghts of visible light and scatters the rest
B. Selectively scatters red wavelenghts of visible light and absorbs the rest
Answer: Option B
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✅ The correct answer is option B.
1758. Which of the following will decrease in a rising parcel of air?
A. Relative humidity
B. Absolute humidity
C. Specific humidity
D. All of the above
✅ The correct answer is option B.
The air parcel expands as it rises and this expansion, or work, causes the temperature of the air parcel to decrease. As the parcel rises, its humidity increases until it reaches 100%. When this occurs, cloud droplets begin forming as the excess water vapour condenses on the largest aerosol particles.
The air parcel expands as it rises and this expansion, or work, causes the temperature of the air parcel to decrease. As the parcel rises, its humidity increases until it reaches 100%. When this occurs, cloud droplets begin forming as the excess water vapour condenses on the largest aerosol particles.
1759. Which of the following is false?
A. Quantity of biomass in a trophic level at a particular period is called as standing crop
B. The energy content in a trophic level is determined is determined by considering a few individuals of a species in that trophic level.
C. The succession that occurs in newly cooled lava is called primary succession
D. Rate of succession is faster in secondary succession
✅ The correct answer is option B.
The energy content in a trophic level is determined is determined by considering a few individuals of a species in that trophic level.
The energy content in a trophic level is determined is determined by considering a few individuals of a species in that trophic level.
1760. Electromagnetic radiation with wavelengths between 0.4 and 0.7 micrometers is called:
A. Ultraviolet light
B. Visible light
C. Infrared light
D. Microwaves
✅ The correct answer is option B.
The higher the frequency, the shorter the wavelength. The only part of the spectrum that we can see is called visible. Wavelengths between 0.4 and 0.7 micrometers are visible. It appears white but contains different colors.
The higher the frequency, the shorter the wavelength. The only part of the spectrum that we can see is called visible. Wavelengths between 0.4 and 0.7 micrometers are visible. It appears white but contains different colors.