SSLC (English Medium) इयत्ता ९ - Tamil Nadu Board of Secondary Education Question Bank Solutions for Science

Differentiate Extensive and Intensive Fish culture.

Enumerate the nutritional values of prawns.

What is the nutritional importance of fish liver oils? Name any two marine fishes which yield these oils.

Derive the equations of motion by graphical method.

Why is it easier to swim in seawater than in river water?

Numerical Problem.

Density of mercury is 13600 kg m^–3. Calculate the relative density.

Write the spherical mirror formula and explain the meaning of each symbol used in it.

What is meant by supersonic speed?

Differentiate hydrate and anhydrous salts with examples.

Write any five uses of salts.

Nandhini brings his lunch every day to school in a plastic container which has resin code number 5. The container is made of ______.

The cathode of an electrochemical reaction involves ______.

______ is an electrochemical cell which converts electrical energy into chemical change(Reaction).

Higher Order Thinking Skill.

Batteries that are used in mobile phone can be recharged. Likewise, can you recharge the batteries used in watches? Justify your answer

State whether true or false. If false, correct the statement.

Trachea are the respiratory organ of Annelida.

Give an account on phylum Annelida.

Epithelial cells with cilia are found in ______ of our body.

Lining of small intestine is made up of ______.

State whether true or false. If false, correct the statement.

Epithelial tissue is protective tissue in animal body.

Bile helps in the digestion of ______.