Multiple choice question.

Which one of the following is the smallest ocean:

Multiple choice question.

Which one of the following is not a minor relief feature in the oceans:

Multiple choice question.

Salinity is expressed as the amount of salt in grams dissolved in sea water per

Answer the following questions in about 30 words.

(i) Why do we call the earth a Blue Planet?

(ii) What is a continental margin?

(iii) List out the deepest trenches of various oceans.

(iv)What is a thermocline?

(v) When you move into the ocean what thermal layers would you encounter?

Why the temperature varies with depth?

(vi) What is salinity of sea water?

Answer the following questions in about 150 words.

(i) How are various elements of the hydrological cycle interrelated?

(ii) Examine the factors that influence the temperature distribution of the oceans.