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Which is the largest planet in our solar system?
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Jupiter
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Saturn
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Mercury
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Earth
Explanation
The solar system comprises the sun, the planets, and other celestial bodies that revolve around it. Of all the planets, Jupiter is the largest planet.
At room temperature, which metal does not remain solid?
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Mercury
0%
Sodium
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Potassium
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Bromine
Explanation
Mercury, with the symbol Hg, is used in thermometers to measure temperature as it is the only metal that is liquid at room temperature.
How many elements is water made of?
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2
0%
4
0%
3
0%
5
Explanation
Water is made up of two parts hydrogen and one part oxygen. It is a vital component for the existence of life on Earth.
Name the largest organ in the human body?
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Skin
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Skull
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Liver
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Heart
Explanation
The skin is the largest organ of our body that protects other organs from external factors such as air, water, and microorganisms.
What is the name of Earth’s natural satellite?
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Moon
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Mars
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Sun
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Mercury
Explanation
The natural satellite of Earth is the Moon. The planet Mars has two natural satellites, while Saturn has 82 known moons.
How many teeth do a human adult have?
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32
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24
0%
36
0%
26
Explanation
There are 32 teeth in adults that comprise 8 incisors, 8 premolars, 12 molars, and 4 canines. Children have 20 teeth that are also known as milk teeth.
Plants need which gas for photosynthesis?
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Carbon-dioxide
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Hydrogen
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Carbon monoxide
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Nitrogen
Explanation
Apart from water and sunlight, plants need carbon dioxide from the air to perform photosynthesis. Oxygen is released in this process which is essential for us to survive.
Which is the lightest element in the periodic table?
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Hydrogen
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Oxygen
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Nitrogen
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Carbon
Explanation
Hydrogen, with the atomic number 1, is a colorless and odorless gas. It is the lightest as well as the most abundant element in the universe.
What do we call animals that eat both plants and animals?
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Omnivores
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Carnivores
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Insectivores
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Herbivores
Explanation
Animals that can feed on both plants and animals are known as omnivores. Birds, dogs, bears are all examples of omnivores.
Yeast is a type of which microorganism?
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Fungus
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Bacteria
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Virus
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Protozoa
Explanation
Yeast is a kind of fungus that is used in several food preparations where fermentation is required, such as baking bread.
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