Question

EXERCISES
1. Answer the following questions briefly.
(a) What is the angle of inclination of the earth's axis with its orbital plane?
(b) Define rotation and revolution.
(c) What is a leap year?
(d) Differentiate between the Summer and Winter Solstice.
(el What is an equinox?
(0 Why dora the Southern Hemisphere experience Winter and Summer Solstice
in different times than that of the Northern Hemisphere?
© Why do the poles experience about six months day and six months night
2. Tick the correct ansvers.
(a) The movement of the earth around the sun is known as
0 Rotation
(6) Revolution
(hi) Inclination
(b) Direct rays of the sun fall on the equator on
ID 21 March
(11) 21 June
(11) 32 December
d Chrisimas is celebrated in summer in
f) Japan
(ii) India
(iu) Ausindia
(d) Cycle of the seasons is caused due to
(0 Rotation
(11) Revolution
3. Fill in the blanks.
(1) Gravitation
lal Aleap year bas
number of days.
(b) The daily notion of the earth is
le) The earth travels around the sun in
orbit
(d) The sun's rays fall vertically on the Tropic of
lel Days are shorter during
season
on 21 June
ors on​

Answer 1

Answer:

1.(a)...23.5 degrees.

b...Rotation of the Earth is its turning on its axis. Revolution is the movement of the Earth around the Sun. ... The path of the Earth moving around the Sun is called an orbit.

c...366 days instead of 365. Because February will have 29 days instead of 28 days.

d....The day that the Earth's North Pole is tilted closest to the sun is called the summer solstice. ... It is also the day that the Sun reaches its highest point in the sky. The winter solstice, or the shortest day of the year, happens when the Earth's North Pole is tilted farthest from the Sun.