1. The earth is a unique planet. Do you know why? Let's find out. a) The earth is the only planet which has ____ life ____ on it. b) It has ____ air ____ all around it that helps us to breathe. c) The temperature on the earth is neither too ____ hot ____ nor too ____ cold ____. d) From space, the earth looks blue because most of its surface is covered with ____ water ____. e) The earth is also called a ____ blue ____ Planet. 2. Write true or false. a) A globe is the model of the earth. b) India is a continent. c) The earth is not stationary. d) Large maps hung on walls are called wall maps. e) Indian Ocean is the largest ocean.
Answer (1)
The Earth is a unique planet for several reasons:
a) The earth is the only planet which has life on it. This is because it has the right conditions such as water, suitable temperature, and atmosphere.
b) It has air all around it that helps us to breathe. The atmosphere is composed of nitrogen, oxygen, and traces of other gases, which are essential for living organisms.
c) The temperature on the earth is neither too hot nor too cold . This balanced range of temperature makes it suitable for life forms to survive.
d) From space, the earth looks blue because most of its surface is covered with water . Oceans and seas cover about 71% of the Earth's surface.
e) The earth is also called a Blue Planet due to its appearance from space, which is mainly because of the large water bodies reflecting the blue light.
Write true or false:
a) A globe is the model of the earth. True . A globe is a spherical representation of the Earth, showing continents, countries, and oceans in a realistic way.
b) India is a continent. False . India is a country; it is part of the continent of Asia.
c) The earth is not stationary. True . The Earth rotates on its axis and revolves around the Sun, which contributes to day and night and the change of seasons.
d) Large maps hung on walls are called wall maps. True . Wall maps are large maps designed to be displayed on walls for educational or decorative purposes.
e) Indian Ocean is the largest ocean. False . The Pacific Ocean is the largest ocean on Earth, not the Indian Ocean.
