Tigers are becoming extinct due to poaching and we are disturbing their natural habitat.Tigers are also a very endangered species of animal.They are commonly found in India,China and Bhutan.
We humans destroy the habitat of tiger and poachers hunt them for their skin,nail and teeth.This is the reason for tiger becoming extinct.
It is called a proboscis and is a long flexible tube like straw that is the butterfly's tongue. The butterfly uses the proboscis to drink nectar and when it is not in use it curls back into a spiral.
Echolocation is the using of echo to locate object or find a prey.Animals like Bat sends vibrations that bounce off from the body of their prey.Then they with the help the vibrations they can locate food easily.
When early human beings noticed that they are not getting sufficient amount of food to survive, they started moving from one place to another in search of food and shelter and they were called nomads.
The transfer of heat from one substance to another by direct contact is called conduction or diffusion.
The American astronomer Edwin Hubble made the observations in 1925 and was the first to prove that the universe is expanding. He proved that there is a direct relationship between the speeds of distant galaxies and their distances from Earth. This is now known as Hubble's Law.