Question

1. Answer the following questions.
(1) What is an ecosystem?
(ii) What do you mean by natural environment?
(iii) Which are the major components of the environment?
(iv) Give four examples of human made environment.
(v) What is lithosphere?
(vi) Which are the two major components of biotic environment?
(vii) What is biosphere?​

Answer 1

Answer:

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1.An ecosystem is a geographic area where plants, animals, and other organisms, as well as weather and landscape, work together to form a bubble of life. Ecosystems contain biotic or living, parts, as well as abiotic factors, or nonliving parts. ... Abiotic factors include rocks, temperature, and humidity.

2.The term 'natural environment' refers to the non-human-made surroundings and conditions in which all living and non-living things exist on Earth. ... Ecological units that operate as natural systems (such as soil, vegetation and so on). Universal natural resources (such as air and water).

3.The basic components of the environment are atmosphere or the air, lithosphere or the rocks and soil, hydrosphere or the water, and the living component of the environment or the biosphere.

4.Bridge, roads, buildings, and monuments are four examples of human made environment.

5.A lithosphere is the rigid, outermost shell of a terrestrial-type planet or natural satellite. On Earth, it is composed of the crust and the portion of the upper mantle that behaves elastically on time scales of thousands of years or greater. 

6.Two major components of biotic environment are Plants and Animals.

7.The biosphere, also known as the ecosphere, is the worldwide sum of all ecosystems. It can also be termed the zone of life on Earth. The biosphere is virtually a closed system with regards to matter, with minimal inputs and outputs. 

Answer 2

(I) An ecosystem is a geographic area where plants, animals, and other organisms, as well as weather and landscape, work together to form a bubble of life.

(ii) The term 'natural environment' refers to the non-human-made surroundings and conditions in which all living and non-living things exist on Earth. ... Ecological units that operate as natural systems (such as soil, vegetation and so on). Universal natural resources (such as air and water).

(iii) The basic components of the environment are atmosphere or the air, lithosphere or the rocks and soil, hydrosphere or the water, and the living component of the environment or the biosphere.

(iv) Bridge, roads, buildings, and monuments are four examples of human made environment.

(v) The rigid outer part of the earth, consisting of the crust and upper mantle.

(vi) Two major components of biotic environment are Plants and Animals.

(vii) The part of the earth’s surface and atmosphere in which plants and animals can live.

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