Question

3. Write short notes on
a. Hydrosphere
b. Ecosystem​

Answer 1

Answer:

(a) The hydrosphere is simply the total of all the water in Earth's atmosphere. A hydrosphere is the total amount of water on a planet. The hydrosphere includes water that is on the surface of the planet, underground, and in the air. A planet's hydrosphere can be liquid, vapor, or ice

(b) An ecosystem is a community of living organisms in conjunction with the nonliving components of their environment, interacting as a system. These biotic and abiotic components are linked together through nutrient cycles and energy flows. ... Ecosystems are controlled by external and internal factors.......

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Answer 2

Answer:

hydrosphere | National Geographic Society

09-Feb-2011 — The hydrosphere includes water that is on the surface of the planet, underground, and in the air. A planet's hydrosphere can be liquid, vapor, or ice. On Earth, liquid water exists on the surface in the form of oceans, lakes and rivers. ... Water collects in clouds, then falls to Earth in the form of rain or snow.

An ecosystem is a community of living organisms in conjunction with the nonliving components of their environment, interacting as a system. These biotic and abiotic components are linked together through nutrient cycles and energy flows. ... Ecosystems are controlled by external and internal factors