General Science Questions

Q:

Bright light is found to emit from photographer’s flashgun. This brightness is due to the presence of which one of the following noble gases?

A) Argon B) Xenon
C) Neon D) Helium
 
Answer & Explanation Answer: B) Xenon

Explanation:

Electronic Flash differs from the consumable bulb flash in important aspects. Instead of creating light by burning up in an atmosphere containing oxygen, a consumable material (each bulb being used therefore only once), it produces a brilliant incandescent by discharging a current for a brief instant through a rarified gas, usually xenon. The gas glows every time the discharge is made through it but it is not consumed, so that many thousands of flashes are obtainable from a single tube, which helps to offset the much higher cost of the initial apparatus.

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Q:

An advantage to group therapy is that groups

A) social support B) less time
C) economical D) None of the above
 
Answer & Explanation Answer: A) social support

Explanation:

Group Therapy is a form of psychotherapy in which one or more therapists treat a small group of patients to describe and discuss their problems. Group therapy allows individuals to develop self-awareness and better understand themselves by listening to others with similar issues in the context of their relationships.

 

An advantage to group therapy is that groups are source for social support.

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Q:

Carbon dioxide fire extinguishers are suitable for

A) Crackers B) Electrical fires
C) Bombs D) All of the above
 
Answer & Explanation Answer: B) Electrical fires

Explanation:

A Carbon Dioxide Fire extinguisher is a specific type of fire extinguisher that can be used on electrical fires and liquid flammable type of liquids and gases.

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Q:

Research designed to evaluate theories is called

Answer

Research designed to evaluate theories is called the scientific method.

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Q:

In polar areas, solar radiation strikes earth at a

A) small angle B) right angle
C) large angle D) None of the above
 
Answer & Explanation Answer: A) small angle

Explanation:

The earth receives energy from the Sun in the form of radiation . The Earth reflects about 30% of the incoming solar radiation. In polar areas, solar radiation strikes earth at a low angle. The more acute the angle at which the sunlight strikes, the more atmosphere that sunlight must pass through.

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Q:

All of the following are excretory (waste) products of animals, except

A) Uric Acid B) Ammonia
C) Carbohydrates D) Urea
 
Answer & Explanation Answer: C) Carbohydrates

Explanation:
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Q:

The process of soil formation is called

A) Filtration B) Weathering
C) Vegetation D) Calicing
 
Answer & Explanation Answer: B) Weathering

Explanation:

The soil is formed by breaking down of large rock surfaces into pieces due to water, wind and all atmospheric changes by mixing with plants and animal decays. This process is called as weathering.

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Q:

Name the elements that determine the weather of a place.

A) Humidity B) Temperature
C) Rainfall D) All of the above
 
Answer & Explanation Answer: D) All of the above

Explanation:

The elements that determine the weather of a place are temperature, humidity, rainfall and wind.

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