Training test 2 — test. Science Test Space, Class 8.

Difficulty level:	Recomended time:
	00:10:00

Difficulty level:

00:10:00

1.	Properties of carbon cycle	2 m.
2.	Carbon, nitogen and hydrological cycle	4 m.
3.	Process involved in water cycle and nitrogen cycle	2 m.

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2. Training test 2