22. Define the following words-
i.Ecosystem
ii. Biosphere
iii. Barter system
iv. Environment
Answers
Answer:
define of environment
where we live and we see are surrounding is called environment
Answer:
Explanation:
Ecosystem is an system which consists of nature not humans like water is included soil,sun and others
Biosphere is an sphere which consists of all living things but in this case humans are too included because we are living mammals. And also consists other three realms like atmosphere,hydrosphere and lithosphere. Biosphere word comes from Latin 'bio'.
Barter system consists before thousands year back in this we can exchange goods which we need and we should also give same need to that person who is ready to give us our necessity thing.
Environment is habitat where we live to survive in earth there are specific environment to each of us some may live in hot and some in cold or even inside the water using submirine