B. Fill in the blanks. 1.----------is a narrow belt or zone of the earth where all forms of life exist.?2.An envelope of the air surrounding the earth is called---------? 3.----------is the upper surface of the earth consisting of rocks.4. A highly elevated land from the surrounding with very steep slopes is known as----------?5.An upland with rugged surface is called-------?

B. Fill in the blanks. 1.----------is a narrow belt or zone of the e

1.	B. Fill in the blanks. 1.----------is a narrow belt or zone of the earth where all forms of life exist.?2.An envelope of the air surrounding the earth is called---------? 3.----------is the upper surface of the earth consisting of rocks.4. A highly elevated land from the surrounding with very steep slopes is known as----------?5.An upland with rugged surface is called-------?
Answer» ONG>ANSWER: Biosphere Atmosphere Lithosphere mountains