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Browse complete papersWhat level of the food chain are carnivores?
Producers
Secondary consumers
Decomposers
All of them.
Correct answer
Producers
Which of the following nutrients is needed to build and maintain the structural components of the body?
Carbohydrates
Protein
Fat
Fiber
Correct answer
Carbohydrates
What is the correct order of the 3 R principle?
Recycle, Reuse, Reduce
Reuse, Reduce, Recycle
Reduce, Reuse, Recycle
Reset, Recycle, Reduce
Correct answer
Recycle, Reuse, Reduce
In a food chain, the total amount of living material is depicted by
Pyramid of biomass
Pyramid of energy
Pyramid of number
Trophic levels
Correct answer
Pyramid of biomass
Which of these physical properties will be conserved due to Newton's Third Law of Motion?
Momentum
Angular Momentum
Acceleration
Force exerted
Correct answer
Momentum
The neutral atoms of all of the isotopes of the same element have
Different numbers of protons.
Equal numbers of neutrons.
The same number of electrons.
The same mass numbers.
Correct answer
Different numbers of protons.
Which one of the following optical phenomena supports that the light is a transverse wave?
Refraction
Diffraction
Polarization
Fluorescence
Correct answer
Refraction
A body of mass 10 kg is moving with a constant velocity of 10 m/s. When a constant force acts for 4 seconds on it, the body moves with a velocity of 2 m/s in the opposite direction. The acceleration produced in it is:
3 m/s2
-3 m/s2
0.3 m/s2
-0.3 m/s2
Correct answer
3 m/s2
Montreal Protocol was signed to combat which of the following environmental issue?
Ozone depletion
Sound pollution
Greenhouse gas emissions
Water pollution
Correct answer
Ozone depletion
Non-coplanar concurrent forces are those forces which
Meet at one point, but their lines of action do not lie on the same plane.
Do not meet at one point and their lines of action do not lie on the same plane.
Meet at one point and their lines of action also lie on the same plane.
Do not meet at one point, but their lines of action lie on the same plane.
Correct answer
Meet at one point, but their lines of action do not lie on the same plane.