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Class 11 Water (Oceans) worksheet
CBSE Social Science. The hydrological cycle, relief of the ocean floor, and the temperature and salinity of ocean waters. Every sheet has 20 questions in three sections and an answer key, and the numbers change every time.
Sample questions
Real questions from this chapter, as the app sets them. Tap Answer to see the answer and working.
Section A · multiple choice
- 1.
About what share of the planet’s water is found in the oceans?
- 29 per cent
- 50 per cent
- 59 per cent
- 91 per cent
Answer
(d) 91 per cent
- 2.
What is an oceanic trench?
- the deepest, narrow, steep-sided basin
- a deep valley cut across the shelf and slope
- a coral reef around a central lagoon
- a pointed volcanic mountain that does not reach the surface
Answer
(a) the deepest, narrow, steep-sided basin
- 3.
Which is an example of a seamount?
- the Gulf Stream
- Iceland
- the Emperor seamount
- the Bay of Fundy
Answer
(c) the Emperor seamount
Section B · short answer
- 4.
What is the hydrological cycle?
Answer
The continuous circulation of water between the oceans, atmosphere, land surface and subsurface, and organisms, in liquid, solid and gas forms.
- 5.
Describe each feature of the ocean floor: (a) continental slope (b) guyot
Answer
(a) the steep 2–5° slope from shelf to ocean basin (b) a flat-topped seamount
Section C · long answer
- 6.
Describe the major relief features of the ocean floor.
Answer
Continental shelf (shallow, 1° or less), continental slope (2–5°, to 3,000 m), deep sea plains (3,000–6,000 m, flattest) and trenches (deepest, near island arcs).
Fresh sheets for your child
In the app, every Water (Oceans) sheet is new: the app remembers the questions your child has already had and leaves them out. Print the sheet as a PDF, or use notebook mode and write the answers in a notebook.
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