Chhattisgarh State Board Class 6 Science Chapter 1 Our Earth Exercise Fill in the Blanks, True or False , Questions and Answers here.
Choose the correct answer among the given options.
1) Minerals are found in abundance in
a) Atmosphere
b) Mantle
c) Crust
d) Core
ANS: c) Crust
2) Gas necessary for respiration is
a) Nitrogen
b) Air
c) Oxygen
d) Carbon Dioxide
ANS: c) Oxygen
3) Which of the following is not a planet-
a) Venus
b) Mercury
c) Saturn
d) Moon
ANS: d) Moon
4) In the solar system, the earth is located between which of the two planets?
a) Mars and Mercury
b) Venus and Mercury
c) Mars and Venus
d) Mars and Jupiter
ANS: c) Mars and Venus
Fill in the blanks.
(1) The Innermost portion of earth is known as ___________
ANS: CORE
(2) ___________ is the only planet of the solar system where life exists.
ANS: EARTH
(3) _______ gas present in air is used by the living organisms for breathing.
ANS: OXYGEN
(4) Green plants use ___________ gas for the manufacture of their food.
ANS: CARBON DIOXIDE (CO2)
(5) INSAT is an _______ satellite of the earth.
ANS: Artificial
(1) The Sun is a star.
ANS: TRUE
(2) Moon is the natural satellite of the earth.
ANS: TRUE
(3) Air is soluble in water.
ANS: TRUE
(4) The Sun revolves around the earth.
ANS: FALSE
The earth revolves around the Sun.
(5) In the core solid iron and nickel metals are found.
ANS: TRUE
Match the following
Satellite – Mercury
Middle layer of earth – Oxygen
Air taken during breathing – Mantle
Nearest planet to sun – Moon
Nearest planet to earth – Mars
ANS:
Satellite – Moon
Middle layer of earth – Mantle
Air taken during breathing – Oxygen
Nearest planet to sun – Mercury
Nearest planet to earth – Mars
Short Answer Questions.
(1) What is the importance of the three layers of earth?
ANS: i) There are three layer of earth the outermost layer is crust .air, soil, food And mineral found in This crust.
ii) Below Crust is mantle. It as molten rocks. Along with many gas.
iii) The innermost region of earth is core. It consist of mainly iron and nickel.
3) What is the importance of oxygen for living beings?
ANS: i) Living being take in O2 from the surrounding air for living.
ii) Also required O2 for their survival.
iii) Gas which is necessary to maintain sustainability of life on earth.
4) Write the names of the members of the solar system according to their distance from the Sun.?
ANS: Names of the members of the solar system according to their distance from the Sun as follow:
Mercury
Venus
Earth
Mars
Jupiter
Saturn
Uranus
Neptune.
6) Why is the Earth called a unique planet?
ANS: i) The life present only on earth planet.
ii) All living beings found in the world like plants, animals, human being to live on earth.
iii) There are land, deserts, mountains, rivers, lakes and oceans in this earths . These fit fulfil all the needs of the living beings.
iv) Hence Earth is called a unique planet.