Questions

The Aufbau Principle states that in the ground state of an atom, an electron enters the orbital with lowest energy first and subsequent electrons are fed in the order of increasing energies.

A Light-year is a distance that light travels in the vacuum in one Julian year (365.25 days).

The light-year is a unit of length used to express astronomical distances. It is about 9.5 trillion kilometers or 5.9 trillion miles. 

In the above given sentences, there are some english grammatical and spelling mistakes. They are ::

1. He are very happy -------> He is very happy

2. We gonna get a new dog ------> We are going to get a new dog

3. It taste sweet  -------> It tastes sweet

4. He like cats -------> He likes cats

5. Me favourite coler is blue -------> My favourite color is blue

The paste applied to the side of a match box is a mixture of phosphorus trisulphide, glass powder (or sand) to cause friction and glue (binding material)

Plants that grow in Saline Water are called Halophytes.