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Browse complete papersThe tides and waves of oceans could be harnessed to generate
Energy and electricity
Gulf
Minerals
Heat
Correct answer
Energy and electricity
Directions
The following question consists of two statements one labeled as “Assertion” and the other as “Reason”. You have to examine these two statements carefully and select the correct answer to the question from the given options.
Assertion(A): Solid waste is a major issue in today's world.
Reason(R): It pollutes both the soil and the water.
Both A and R is true
Both A and R is false
A is true but R is false.
A is false but R is true.
Correct answer
Both A and R is true
Which of the following do not have a differentiated plant body?
thallophytes
bryophytes
gymnosperm
pteridophytes
Correct answer
thallophytes
Suresh encounters an organism having bilateral symmetry, closed circulation and metameric segmentation. Help Suresh figure out, that the animal is
A Mollusca
An Annelida
An Echinodermata
Nematode
Correct answer
A Mollusca
The percentage of _______ in the atmosphere is said to have doubled since the industrial revolution when human beings started burning fossil fuels on a very large scale.
nitrogen
carbon dioxide
atmospheric ozone
oxygen
Correct answer
nitrogen
Marine fish capture is done by fishing nets guided by :
echo sounders and satellites
virtual imaging
drones
submarines
Correct answer
echo sounders and satellites
Amoebiasis is a disease in which the pathogen affects the -
Heart
Lungs
Intestine
Brain
Correct answer
Heart
Water cleared off sludge in Waste Water Treatment Plant (WWTP) is known as -
Pure water
Clarified water
Reclaimed water
RO water
Correct answer
Pure water
Above______ the noise becomes physically painful to human ears.
10 dB
30 dB
50 dB
80 dB
Correct answer
10 dB
What is the molecular formula for chalk?
Ca(OH)2
CaCO3
Ca(SO4)2
CaHCO3
Correct answer
Ca(OH)2