Tag: evs - i

Questions Related to evs - i

Identify the true statement(s) for comets:

evs - i our earth and our solar system asteroids, comets, and meteors and meteorites other objects in solar system asteroids, comets and meteors

  1. Those are messengers of disaster

  2. Many comets appear after a fixed time interval

  3. Occurrance of comets is a natural phenomenon

  4. The tail of the comet is always directed towards the sun

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Correct Option: B,C
Explanation:

Occurance of comets is a natural phenomenon and there is nothing superstitious about it. Many comets appear after fixed time interval for example, Halley"s comet which appears once in every 76 years.

The bright streaks of light seen occasionally in the sky are ________.
evs - i our earth and our solar system asteroids, comets, and meteors and meteorites other objects in solar system asteroids, comets and meteors

  1. planets

  2. satellites

  3. meteors

  4. constellations

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Correct Option: C
Explanation:

Meteors are small objects that sometimes enter the Earth"s atmosphere. However, due to the high speed of the meteor friction is created between its surface and Earth"s atmosphere causing it to heat up. Thus it glows and evaporates quickly and appears for a very short period of time as a bright streak of light.

Comets revolve around the Sun:

evs - i our earth and our solar system asteroids, comets, and meteors and meteorites other objects in solar system asteroids, comets and meteors

  1. in a highly elliptical orbit

  2. along a circular orbit

  3. in an elliptical orbit

  4. varying orbit depending on the comet

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Correct Option: A
Explanation:

Comets revolve around the Sun in a highly elliptical orbit such that at one end of the orbit it is very far from the Sun and at the other end it is near to the Sun.

Comet is an object with a _________ head and a _________ tail.
evs - i our earth and our solar system asteroids, comets, and meteors and meteorites other objects in solar system asteroids, comets and meteors

  1. pale, long

  2. bright, long

  3. pale, short

  4. bright, short

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Correct Option: B
Explanation:

A comet generally appears as a bright head with a long tail.

Meteorites are useful because:

evs - i our earth and our solar system asteroids, comets, and meteors and meteorites other objects in solar system asteroids, comets and meteors

  1. those can be stored in the museum

  2. those help the scientists in studying the material from which the solar system was formed

  3. those cause destruction

  4. those are only rocks

Show answer
Correct Option: B
Explanation:

Meteorites are useful mainly because they help the scientists in studying the material from which the solar system was formed.

What is a meteorite?

evs - i our earth and our solar system asteroids, comets, and meteors and meteorites other objects in solar system asteroids, comets and meteors

  1. A meteor that reaches the surface of Earth

  2. Shooting star

  3. A constellation

  4. A comet

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Correct Option: A
Explanation:

Some meteors are large enough to reach the Earth's surface before they evaporate completely. Such meteors that reach the surface of Earth are called meteorites.

Identify the wrong statements for asteroids:

evs - i our earth and our solar system asteroids, comets, and meteors and meteorites other objects in solar system asteroids, comets and meteors

  1. Revolve around the Sun

  2. Separate inner and outer planets

  3. Can only be seen through any telescopes

  4. Asteroids are rock-like structures

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Correct Option: C
Explanation:

Asteroids are rock-like structures that occupy the huge gap between the orbits of Mars and Jupiter. 

Those, too, revolve around the Sun in a similar orbit. 
Those form a belt like structure known as asteroid belt and the planets before the asteroid belt i.e., Mercury, Venus, Earth and Mars, are called inner planets. The planets that lie beyond the asteroids i.e., Jupiter, Saturn, Uranus and Neptune are called outer planets. 
Since the asteroids are smaller is size, those can only be seen through large and powerful telescopes, not through any telescope.

All meteors reach the surface of the Earth. This statement is

evs - i our earth and our solar system asteroids, comets, and meteors and meteorites other objects in solar system asteroids, comets and meteors

  1. True

  2. False

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Correct Option: B
Explanation:

Meteors that are small in size evaporate before they can reach the surface of Earth due to the heat generated because of friction between the meteor's surface and Earth's atmosphere. Only the bigger ones reach the surface of the Earth.

Shooting stars are actually not meteors.

evs - i our earth and our solar system asteroids, comets, and meteors and meteorites other objects in solar system asteroids, comets and meteors

  1. True

  2. False

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Correct Option: B
Explanation:

Despite its name, shooting stars are not actually stars. Shooting star is either a piece of a small rock or dust from space that heats up when is enters the Earth's atmosphere. Shooting stars are basically meteors.

Which of the following other than planet is (are) member(s) of solar system?

evs - i our earth and our solar system asteroids, comets, and meteors and meteorites other objects in solar system asteroids, comets and meteors

  1. Asteroids

  2. Constellations

  3. Meteors

  4. Both A and C

Show answer
Correct Option: D
Explanation:

Both asteroids and meteors are part of solar system.