● The binomial system of nomenclature was introduced by Carolus Linnaeus. In this system, he gave scientific names to plants and organisms in which the first part is 'genus' and the second part is species.

● Genus: A taxonomic rank below family and above species.

● Species: The fundamental unit in biological classification.

Pattern is:

I) Proper flood warning system can reduce the severity of the loss of life and property because precautionary action can be taken beforehand at vulnerable areas. So, course of action (I) is logical and correct.

II) Poor drainage is one of the main reasons for the flooding of any city. Unclogging of the drains will provide proper passage to rainwater and can reduce flooding to a certain extent. So, course of action (II) is logical and correct.

A is the grandmother of A.

• A microscopic form of fungus.

• Yeast is a unicellular eukaryote.

• It can convert carbohydrates to alcohol and carbon dioxide through the process of the fermentation–An anaerobic process.

The mirror image is -

As shown in figure:

Number of students know math but not English is 11

● Acetone, or propanone, is an organic compound with the formula (CH₃)₂CO. It is the simplest and smallest ketone. It is a colourless, highly volatile and flammable liquid with a characteristic pungent odour.

● One mole of acetone contains 3 moles of carbon atom, 6 moles of hydrogen atom and 1 mole of oxygen atom.

A track is built for Racing. Similarly, skating is a sport performed on Rink.