Questions

Mitochondria which is present in both plant and animal cells supplies energy to the cells and hence called as the powerhouse of the cell.

Tax that uses the same rate for all income levels is proportional tax.

Atoms of the same element can have same atomic number and number of electrons since, the atomic number is the number of protons and the number of protons and eectrons are the same in an element.

Hence, the atoms of the same element may differ in their atomic mass since it depends on the number of neutrons it holds and such atoms are called isotopes.

A permanent magnet can affect both magnets and electromagnets.

A permanent magnet has natural magnetic properties while a temporal magnet is created by artificial means. Permanent magnets do not lose their magnetic ability.

Earth rotates on its own axis and completes one rotation in 24 hours

Geraldine Mock "Jerry" was the first woman to fly around the world successfully in the year 1964.