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

Which of the following is a complex tissue?

Write about the elements of Xylem.

To prevent the entry of food into the trachea, the opening is guarded by ______.

Differentiate the following.

Ingestion and Egestion

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

Iron is required for the proper functioning of thyroid gland.

Assertion: Haemoglobin contains iron.

Reason: Iron deficiency leads to anaemia

Differentiate

Macronutrients from Micronutrients

Why salt is used as preservative in food?

Write any one function of the following minerals

1. Calcium
2. Sodium
3. Iron 
4. Iodine

The value of an astronomical unit is ______.

Match the following:

Assertion (A): Light year and wavelength both measure distance
Reason (R): Both have dimensions of time.

Write the units which are used to measure long distances.

Convert 100°C into Kelvin.

A train travels from A to station B with a velocity of 100 km/h and returns from station B to station A with a velocity of 80 km/h. Its average velocity during the whole journey is ______ and its average speed is ______.

A car accelerates at 1.5m/s² on a straight road. How much is the increase in velocity in 4s?

Speed of the body in a particular direction can be called ______.

The equation v = u + at gives information as ______.

What is the slope of the body when it moves with uniform velocity?

When a body moves uniformly along the circle then ______.