Q.1
The mean radius of the earth is approximately ________
Q.2
The network of the series of vertical and horizontal lines is known as
Q.3
At the summer solstice, which one of the following latitudes will have the longest night?
Q.4
The most abundant metal in the Earth's Crust is
Q.5
Tides are complied and they vary from place to place because of ________
Q.6
Which of the followings are related with "Lithosphere"?
Q.7
The term 'syzygy' is referred to when the ________
Q.8
The Solar eclipse achieves totality only in limited geographical regions because ________
Q.9
The largest amount of reflection of the solar radiant energy which is reflected back into space before reaching the earth's surface is due to ________
Q.10
Who among the following was first to measure the circumference of the Earth?
Q.11
What is the circumference of the Earth?
Q.12
Which of the following phenomenon gives an evidence for the spherical shape of the earth?
Q.13
Who was the first to measure the circumference of the Earth?
Q.14
Beirut time is two hours ahead and Lima time is five hours behind GMT. The longitudes of Beirut and Lima are respectively ________
Q.15
The total surface area of earth is ________
Q.16
The Earth is an oblate spheroid and not a perfect sphere. This is because
1. the Earth has a rotational motion and the rotational speed increases as one goes from the Poles towards the Equator.
2. the Equator experiences greater gravitational pull from the Sun.
3. the intensity of sunlight received at the Equator is greater than that at the Poles.
Q.17
Which of the following countries are located on the Greenwich Meridian?
1. Algeria
2. Germany
3. Guinea
4. Iceland
Q.18
Owing to the equatorial bulge and the polar flattening, the polar radius of the earth falls short of the equatorial radius by about ________
Q.19
Which one of the following is the correct sequence of the given continents in the decreasing order of their percentage of Earth's land?
Q.20
What is the approximate equatorial circumference of the earth?
Q.21
Bridgmanite is
Q.22
Lunar eclipse is caused when the ________
Q.23
Which one of the following is the time required for the Earth to return to a given point in its orbit with reference to fixed star, called?
Q.24
Which of the following is not an effect produced by rotation of earth?
Q.25
The Tropic of Cancer does not pass through
Q.26
Which of the following is the International Date line?
Q.27
One degree of the circumference of the earth measures(approx.) ________
Q.28
Days and nights are caused by :
1. rotation of the earth on its axis
2. revolution of the earth around the sun
3. inclination of the earth's axis
Q.29
The Earth rotates on its axis at an inclination of
Q.30
If a solar eclipse occurs when the moon is quite far from the earth, the eclipse would likely to be ________
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