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

______ also known as Triglycerides are the Esters of free fatty acid chains and Glycerol. 

______ is the enzyme involved in the breakdown of fats in the small intestine during the process of digestion.

The first antibiotic ______ was developed by ______.

Baker’s yeast is ______.

Expand the following:

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Hydroponics was first demonstrated by German botanist ______.

The roots in hydroponic plants absorb water and nutrients but do not perform the anchoring function.

Which of the following is not an adaptation of hydrophytes?

The plants that have air chambers are ______.

Which plant is called “Cinderella of the plant kingdom”?

Match the following:

How are plants classified on the basis of water availability?

Describe the layout of a farm pond.

List out any five advantages of Farm ponds.

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

One Celsius degree is an interval of 1K and zero degree Celsius is 273.15 K.

Assertion (A): 0 °C = 273.16 K. For our convenience we take it as 273 K after rounding off the decimal.

Reason (R): To convert a temperature on the Celsius scale we have to add 273 to the given temperature.

Define least count of any device.

Speed is a ______ quantity whereas velocity is a ______ quantity.

Compare speed and velocity

The instrument used to measure atmospheric pressure is ______.