Tag: general idea about earth

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Questions Related to general idea about earth

Multiple choice geography the earth and the graticule general idea about earth space around the earth is the earth round?

Which of the following names is not applicable to the earth?

  1. Living Planet

  2. Blue Planet

  3. Unique Planet

  4. Mean Planet
Reveal answer Fill a bubble to check yourself
D Correct answer
Explanation
  • Planet Earth has been called the "Blue Planet" due to the abundant water on its surface. 
  • Here on Earth, we take liquid water for granted; after all, our bodies are mostly made of water.
  • However, liquid water is a rare commodity in our solar system.
Multiple choice geography the earth and the graticule general idea about earth space around the earth is the earth round?

Division of land on the earth is done by us into _____.

  1. Seas

  2. Oceans

  3. Mountains

  4. Continents
Reveal answer Fill a bubble to check yourself
D Correct answer
Explanation

Large and continues land masses on surface of the earth are termed as continents. This division on the earth as continents are done by us. Our planet is divided into seven large continental masses, these are, Asia, Europe, Africa, North America, South America, Australia and Antarcatica. Among them Asia is the largest and Australia is the smallest continent.

Multiple choice geography the earth and the graticule general idea about earth space around the earth is the earth round?

What is the name of the supercontinent formed by all the continents millions of years ago?

  1. Eurasia

  2. Gondwanaland

  3. Pangaea

  4. Panthalassa
Reveal answer Fill a bubble to check yourself
C Correct answer
Explanation

In carboniferous period all the land masses were united together in the form of one land mass which was named as Pangaea. There were several smaller inland seas  scattered over Pangaea which was surrounded by a huge water body named as Panthalasa representing Pacific Ocean. Luratia consisting of present North America, Europe and Asia formed norther part of Pangaea while Gondwanaland consisting of South America, Africa, Madagascar, Peninsular India, Australia and Antarctica represented the southern part of Pangaea. South pole was located near present Durban.

Multiple choice geography the earth and the graticule general idea about earth space around the earth is the earth round?

What is the shape of Earth?

  1. Circle

  2. Square

  3. Sphere

  4. Triangle
Reveal answer Fill a bubble to check yourself
C Correct answer
Explanation

The shape of the earth seems like a sphere, although it is not perfectly spherical. It is rather an oblate spheroid because of the earth's diurnal rotation, i.e, the earth is slightly flattened at its polar ends and bulged out at the equatorial part.

Multiple choice geography the earth and the graticule general idea about earth space around the earth is the earth round?

Which of the following theories has no connection with the origin of the earth?

  1. Nebular hypothesis of Laplace.

  2. Tidal hypothesis of Jeans and Jeffreys.

  3. Binary star theory of Lyttleton.

  4. Convection current theory of Holmes.
Reveal answer Fill a bubble to check yourself
D Correct answer
Explanation

Convection current theory of Holmes dealt with the continental drift, which led to the formation of continents as we see them today.

Multiple choice geography the earth and the graticule general idea about earth space around the earth is the earth round?

Rainbow is produced when sunlight falls on drops of rains. Which of the following physical phenomena are responsible for this?
(I). Dispersion
(II). Refraction
(III). Internal Reflection.

  1. II and III only

  2. I and II only

  3. I, II and III

  4. I and III only
Reveal answer Fill a bubble to check yourself
C Correct answer
Explanation

The formation of a rainbow involves a series of physical phenomena- reflection, refraction, dispersion and total internal reflection. The occurrence of each of these is due to the interaction of light with air and water and the boundaries between them.

Multiple choice geography the earth and the graticule general idea about earth space around the earth is the earth round?

On what does the escape velocity of a moon depend?
I. Mass of celestial body.
II. The distance from the centre of mass to the escaping object.

  1. Only I

  2. Only II

  3. Both I and II

  4. Neither I nor II
Reveal answer Fill a bubble to check yourself
C Correct answer
Explanation

Escape velocity is the minimum speed needed for an object to escape from a massive body, in the sense of becoming neither on the surface nor in closed orbit of any radius no matter how great, without the aid of thrust, or suffering the resistance from friction. The escape velocity from Earth is about $11.186$ km/s$(6.951$ mi/s; $40,270$ km/h; $25,020$ mph$)$ at the surface.