Ecosystems

A man-made environment

A part of natural environment consisting of only physical environment

A part of natural environment consisting of only living beings

A part of natural environment consisting of both living beings and physical environment interchanging materials and energy between them (correct)

Atmosphere

Lithosphere

Biosphere (correct)

Hydrosphere

There is no difference between natural and artificial ecosystems

Artificial ecosystems are created by humans while natural ecosystems are not (correct)

Natural ecosystems are only found in oceans while artificial ecosystems are found in cities

Natural ecosystems are only found on land while artificial ecosystems are found in water