Average temperature of the Earth is.
14°C
24°C
34°C
20°C
Correct Answer :
A. 14°C
Related Questions
The tail of a comet is directed away from the Sun because
as the comet rotates around the Sun, the light mass of the comet is pushed away due to the centrifugal force alone
as the comet rotates, the lighter mass of the comet is attracted by some star situated in the direction of its tail
the radiation emitted by the Sun exerts a radial pressure on the comet throwing its tail away from the Sun
the tail of the comet always exists in the same orientation
Which planet does take the least time in completing one revolution around the Sun?
Earth
Venus
Mercury
Mars
Which of the following are the Inner Planets?
1. Mercury
2. Venus
3. Earth
4. Mars
Only 1
1 and 2
1, 2 and 3
1, 2, 3 and 4
The group of small pieces of rock revolving round the Sun between the orbits of Mars and Jupiter are called
meteors
comets
meteorites
asteroids
What part of the moon's surface is never visible from the earth?
1.41
1.47
0.59
0.5
Which of the following statements prove(s) that the earth Is spherical?
The Sun rises and sets at different lines in different places.
The shadow cast by the earth on the moon during the lunar eclipse is always circular.
Pictures taken from high alti
Only 1
2 and 3
I, 2 and 3
Only 2
Sunspots are
undulations on the solar surface
huge magnetic storms on the solar surface
places with adequate sunshine
places of tourist importance
The time period elapsing between one New Moon and the next is approximately
8.19 Days
30 days
29.5 Days
61 Days
The visible surface of the sun is known as
Chromosphere
Sunspots
Sun surface
Photosphere
How much time (approximately) does the light from the nearest star to the Sun take in reaching the earth?
4.3 seconds
4.3 years
4.3 minutes
4.3 hours
Average density of the Earth is ( relative to water) __.
5.5
4.5
9.5
6.5
Sun revolves around galaxy once in every 250 million years, this length of time is called _____.
Cosmic or Galactic Year
Mean Solar Year
Sidereal Year
Leap Year
How much time does earth take in making one rotation on its axis with respect to a fixed star at infinite distance?
23 hours 56 minutes
24 hours
23 hours 46 minutes
24 hours 4 minutes
A meteor is
a rapidly moving star
a piece of matter which has entered the earth's atmosphere from outer space
part of a constellation
a comet without a tail
Which of the following statements are true?
1. Inner Planets are alternatively called Terrestrial Planets.
2. Outer Planets are Jupiter, Saturn, Uranus and Neptune. All four Outer Planets are considered as Great Planets.
3. Pluto is also considered as
1, 2 and 4
1 and 4
1, 3 and 4
1, 2, 3 and 4
Period of sunspot cycle is
11 years
15 years
21 years
33 years
What is the name of 'brightest Planet'?
Venus
Mercury
Mars
Saturn
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
Rapidly rotating stars emitting intense radio waves are called ___.
Pulsars
Quasuars
Neutron stars
All of the above
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
Which one of the following stars is nearest to the Earth?
Polaris
Alpha Centauri
Sun
Sirius
Which planet has the largest equatorial radius?
Jupiter
Saturn
Mars
Earth
Deimos and Phobos are the satellites of
Earth
Mars
Uranus
Neptune
The dark patches, associated with the Sun storms present in Sun are called
Sunspots
Pulsars
White Dwarfstar
Supernova
Earth revolves round the Sun In an orbit once In every __.
24 hours
20 hours
365 % days
366 days
Big Bang Theory' explains
the formation of universe
the origin and evolution of earth's crust
formation of Solar System
formation of constellation
Which planet does experience a day almost of the same duration as the Earth?
Venus
Mercury
Mars
Jupiter
To a space traveller stationed in Moon, during the day time the lunar sky will appear
Blue
White
Black
Crimson Red
A celestial body which revolves round a planet just as a planet revolves round the Sun is called _____.
Moon
Asteroid
Satellite
Great Bear
Relatively cool spots of the Sun are called __ while relatively hot spots of the Sun are called __.
Fusionspot, Facu1ae
Sunspot, Faculae
Faculae, Sunspot
Sunspot, Hotspot