Questions

Russia has decided to venture into Internet of things with new satellite system 'Marathon'.

The resistivity of wire or the metal conductor is depend on the number density of free electrons in the conductor. so its mainly depends on nature of the material

A gamma ray or gamma radiation, is a penetrating electromagnetic radiation arising from the radioactive decay of atomic nuclei. It consists of the shortest wavelength electromagnetic waves and so imparts the highest photon energy.

Gamma rays are emanations that have neither mass nor charge.

Wind and solar energy are examples of Renewable energies. 

Renewable energy sources are those which can be naturally replenished. 

The required number is SEVEN.

If you remove  S, it becomes EVEN.

Herodotus, a Greek author written the first history book in 5th century B.C.

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.