The most important constituent of the Sun's mass is.
Hydrogen
Helium
Silicon
Iron
1 and 2
2 and 3
3 and 4
1,2 and 4
Correct Answer :
A. 1 and 2
Related Questions
The Jupiter's atmosphere comprises mainly of
Hydrogen and oxygen
Carbondioxide and oxygen
Hydrogen and hydrogen compounds
Nitrogen and helium
Which is the second largest satellite in the Solar System?
Titan
Charon
Ganymede
Europa
Nearest star to the earth is _____.
Alfa Centaury
Sun
Proxima Centaury
Dog Star
Largest satellite in Solar System is ____.
Moon
Ganymede
Europa
Cheron
If the stars are seen to rise perpendicular to the horizon by an observer, he is located on the \
Equator
Tropic of Cancer
South Pole
North Pole
When the earth is at its minimum distance from the Sun, it is said to be
Perigee
Apogee
Perihelion
Aphelion
A celestial body which revolves round the Sun and receives heat and light from it is called _____.
Planet
Orion
Satellite
Star
Which of the following conditions la the most relevant for the presence of life on Mars?
Atmospheric composition
Thermal conditions
Occurrence of ice caps and frozen water
Occurrence of ozone
The permanent tilt of the Earth's axis and the revolution of the Earth in its orbit together cause
Day and night
Varying lengths of day and night at different times of the year
Differences in time between places on different meridians
The deflection of winds
Planet nearest to the earth is _____.
Venus
Mercury
Mars
Jupiter
What is the name given to the widened rivermouth found at the point a river enters the sea?
Estuary
Bay
Gulf
Delta
Average temperature of the Earth is.
14°C
24°C
34°C
20°C
The solar eclipse takes place when
The Earth comes between the Sun and the Moon
The Moon passes between the Sun and the Earth
The Sun comes between the Earth and the Moon
The Planets of the Solar System lies on the same plane
Lunar eclipse means
Direction or path of the Moon
The Moon comes between the Sun and the Earth
The Earth comes in between the sun and the Moon and the centres of all the three come on the same straight line
The average angle made by a line drawn from the Moon to the Earth
The inclination of the earth's axis, i.e. the earth's axis is tilted at an angle from perpendicular to the orbital plane or makes an angle with the plane of the earth's orbit. What are these respective angles?
Polar Auroras are called __ in Southern Hemisphere.
Aurora Australis
Quasars
Aurora Borealis
Pulsar
A family or system of millions and millions of stars are called ____.
Universe
Solar System
Galaxy
Asteroids
In which direction la the Tropic oC Capricorn in relation to the Equator?
North
South
East
West
Which of the following planets is called 'blue planet'?
Venus
Earth
Mars
Uranus
When a year divisible by 4 and not divisible by 400 is called
Siderial Year
Solar Year
Cosmic Year
Leap Year
What is peninsula?
A narrow belt of land
A mountainous island
A piece of land surrounded by water on three sides
A range of hills
Shoemaker-Levy 9 is a
Meteors
Pole Stars
Comets
Stars
How many planets does our Solar System consist of?
9
6
7
10
Who was the first person to describe the earth as a sphere?
Columbus
Varahmihir
Aryabhat
Copernicus
Arrange the Inner Planets in decreasing order of their distances from the Sun.
1. Earth
2. Mercury
3. Venus
4. Mars
5. Neptune
1, 4, 3, 2
4, 2, 1, 3
4, 1, 2, 3
4, 1, 3, 2
The difference between day and night increases as one moves
From equator to poles
From poles to equator
From tropics to equator
From plains to mountains
What is the distance around the earth at the Equator?
21,000 km
16,800 km
18,600 km
12,500 km
What is the difference between a lake and a tank?
A lake is small and a tank is big
A lake has flowing water, a tank has still water
A lake is a geographical feature, a tank is not
Both are land-enclosed water bodies, but the latter is man-made
Among the following which planet takes maximum time for one revolution around the Sun?
Earth
Jupiter
Mars
Venus
Which of the following is the largest ocean?
Indian
Pacific
Atlantic
Arctic