General Science Questions

Q:

Weight of an object on the moon is ............ the weight of the object on earth.

A) equal to B) 1/6th
C) 1/2 D) 1/5th
 
Answer & Explanation Answer: B) 1/6th

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Q:

Dolomite power is applied in some agricultural lands. The purpose of applying it is to

A) increase the pH of the soil B) lower the pH of the soil
C) increase the phosphorus content of the soil D) increase the nitrogen content of the soil
 
Answer & Explanation Answer: A) increase the pH of the soil

Explanation:

Dolomite is a limestone compound that contains calcium and magnesium. It provides valuable nutrients to plants and helpschange the pH of the soil by raising it to match the plants' needs. It evenprovides more nutrients than straight lime. It is often used in addition to balanced fertilizers, particularly with seeding fruit.

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Q:

If a star is bigger than Sun, but not more than twice as big, it will turn into a _______.

A) Pulsar B) Maxima
C) Avenger D) Discover
 
Answer & Explanation Answer: A) Pulsar

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Q:

In stems, the protoxylem lies towards the centre and the metaxylem lies towards the periphery of the organ. This type of primary xylem is called _____________.

A) Xylem fibres B) Xylem parenchyma
C) Exarch D) Endarch
 
Answer & Explanation Answer: D) Endarch

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Q:

The exchange of materials between blood and interstitial fluid occurs only at the _____.

A) Veins B) Capillaries
C) Arteries D) Arterioles
 
Answer & Explanation Answer: B) Capillaries

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Q:

Formic acid is produced by __________ .

A) White ants B) Cockroaches
C) Red ants D) Mosquitoes
 
Answer & Explanation Answer: C) Red ants

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Q:

A solar cell is made up of:

A) Carbon B) Gallium
C) Silicon D) Teflon
 
Answer & Explanation Answer: C) Silicon

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Q:

Which atmospheric layer contains ozone layer?

A) Genosphere B) Zonosphere
C) Stratosphere D) Ionosphere
 
Answer & Explanation Answer: C) Stratosphere

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