- Sodium and Potassium
- Sodium and Calcium
- Sodium and Chlorine
- Chlorine and Iodine
- C
-
There are found six elements in sea water which are Chlorine, Sodium, Calcium, Magnesium, Sulfur and Potassium.
Ph of sea water is 7.5 to 8.4.
Everyday Science MCQs
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Coolants in refrigerators and air conditioners contribute to what environmental hazard?
- Acid Rain
- Ozone Depletion
- Oil Spillage
- Global Warming
- B
-
Some refrigerators are extremely harmful for Ozone layer and greenhouse gases also.
Normal temperature of human body is:
- 37 C
- 39 C
- 33 C
- 35 C
- A
-
Normal temperature of human body is 98.6 F.
Nuclear Energy is obtained from:
- Silicon
- Plutonium
- Uranium
- Thorium
- C
-
Nuclear Energy originates from splitting of Uranium atoms.
This function is called Fission.
This fission procedure produces steam that helps to produce Nuclear Energy.
Nuclear Power Plants do not burn fuel.
When current flows through a wire it generates _____
- Ionic Field
- Magnetic Field
- Mechanical Field
- Gravitational Field
- B
-
When current flows through a wire, it generates magnetic field around it.
Bats are _____ animals.
- Nocturnal
- Durnal
- Nightly
- Deadly
- A
-
Animals that sleep during the day and stay active in night are called Nocturnal Animals.
What causes Air pollution?
- Making Noise
- Burning Fuel
- Throwing Garbage in water
- Using Chemical Fertilizers
- B
Lunar Eclipse happens when ______
- Moon comes between Earth and Sun
- Earth comes between Moon and Sun
- Sun comes between Moon and Earth
- The light from the Sun to the Earth is blocked by Moon.
- B
-
Solar Eclipse happens when Moon passed between Sun and Earth.
A cup of yogurt have upto____of bacteria.
- Million
- Hundreds
- Thousands
- None of these
- A
-
A cup of yogurt have upto 106 (One Million) bacteria.
In a rainbow, which colour comes between orange and green?
- Yellow
- Indigo
- Red
- Blue
- a
-
There are seven rainbow colours which are Red, Orange, Yellow, Green, Blue, Indigo and Violet respectively.
