20) What do you mean by the term 'ecosystem'? Explain with an example? 21) Describe any one effect of endogenic forces.

22) Illustrate how wind is caused with the help of a labelled diagram

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.

Explanation:

example:

dessert

forest

grassland

rainforest

tundra

coral reef

aquatic ecosystem

savanna

taiga

the old way of life was represented by superstition, an angry god, and absolute submission to authority. the thinkers of the age of reason ushered in a new way of thinking. this new way championed the accomplishments of humankind. individuals did not have to accept despair. science and reason could bring happiness and progress. kings did not rule by divine right. they had an obligation to their subjects. europeans pondered the implications for nearly a century. americans put them into practice first.

it apply by theyre artifacts