General Science Questions

Q:

Name the mineral used to produce artificial diamonds.

Answer

Graphite

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Q:

Thermal energy is caused by the motion of

A) atoms B) molecules
C) Both A & B D) None of the above
 
Answer & Explanation Answer: C) Both A & B

Explanation:

Thermal energy is caused by the motion of atoms and molecules in the matter.

Thermal_energy_is_caused_by_the_motion_of1556262535.jpg image

 

  1. Thermal energy is an example of kinetic energy, as it is due to the motion of particles, with motion being the key.
  2. Thermal energy results in an object or a system having a temperature that can be measured.
  3. Thermal energy can be transferred from one object or system to another in the form of heat.
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Q:

Traveling at high speeds requires

A) requires more steering input B) involves less vehicle maintenance
C) creates decreased following distances D) requires greater stopping distances
 
Answer & Explanation Answer: D) requires greater stopping distances

Explanation:
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Q:

What is the principle carbohydrate of milk?

A) Fructose B) Sucrose
C) Lactose D) Galactose
 
Answer & Explanation Answer: C) Lactose

Explanation:

Lactose is the major carbohydrate in the milk of most species.

 

Lactose is a disaccharide composed of the monosaccharides D-glucose and D-galactose, joined in a ß-1,4-glycosidic linkage. The chemical name for lactose is 4-0-ß-D-galactopyranosyl-D-glucopyranose.

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Q:

Clay is an example of

A) Aquiclude B) Glossy
C) Utilitarian D) None of the above
 
Answer & Explanation Answer: A) Aquiclude

Explanation:

Clay is an example of Aquiclude.

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Q:

Plants that grow in Saline Water are called

A) Sciophytes B) Bryophytes
C) Halophytes D) Hydrophytes
 
Answer & Explanation Answer: C) Halophytes

Explanation:

Plants that grow in Saline Water are called Halophytes.

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Q:

Metal extracted from seawater

A) Potassium B) Calcium
C) Magnesium D) Sodium
 
Answer & Explanation Answer: C) Magnesium

Explanation:

Magnesium is dissolved in seawater at a concentration of about 1,000 parts per million and is the only metal directly extracted from seawater.

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Q:

Which layer of the atmosphere contains the ozone layer?

A) Troposphere B) Stratosphere
C) Thermosphere D) Mesosphere
 
Answer & Explanation Answer: B) Stratosphere

Explanation:

The ozone layer is a region of Earth's Stratosphere that absorbs most of the Sun's ultraviolet (UV) radiation. It contains high concentrations of ozone (O3) in relation to other parts of the atmosphere, although still small in relation to other gases in the stratosphere.

 

The Atmosphere is divided into 4 layers according to major changes in temperature. They are :

1. Troposphere,

2. Stratosphere,

3. Mesosphere  and

4. Thermosphere.

The farther away from earth, the thinner the atmosphere gets.

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