Questions

Plants are photosynthetic autotrophs, which means that they are able to produce their own food through the process called photosynthesis.

In photosynthesis, plants use light, water, and carbon dioxide to create glucose, which they convert to cellulose and use to make new cells.

Hence, that is why, Plants are called photosynthetic autotrophs.

The troposphere is the lowest layer of the Earth's atmosphere. The air is very well mixed and the temperature decreases with altitude. Air in the troposphere is heated from the ground up. The surface of the Earth absorbs energy and heats up faster than the air does.

The required number is SEVEN.

If you remove  S, it becomes EVEN.

The nervous system of the human brain consists of the central nervous system which has brain and the spinal cord and the peripheral nervous system which has perpheral, cranary, spinal nerves.

There are 12 Indian origin persons in the "House of Commons".

• The House of Commons is the elected lower house of the bicameral parliaments of the United Kingdom. The UK public elects 650 Members of Parliament (MPs) to represent their interests and concerns in the House of Commons. MPs consider and propose new laws, and can scrutinise government policies by asking ministers questions about current issues either in the Commons Chamber or in Committees. 

Graphite is a good conductor of electricity as it contains free electrons to move through the structure of the graphite.

The Agricultural Revolution led to the need for more organized civilizations and societies i,e government.

The Agricultural Revolution was a period of technological improvement and increased crop productivity that occurred during the 18th and early 19th centuries in Europe.

The greatest single drop of the waterfall, Salto Angel of Venezuela, measures 807m and the width at the base is about 150 m. From top to bottom the Angel falls measures 979 m - almost 1 km.