Explanation:
When heat is supplied to the liquid through the burner then portion of liquid at the bottom will start to heat first.
This means molecules at the bottom will start to gain kinetic energy and thus intermolecular forces between them start to decrease.
As a result, they will start to move from their initial position. That is, molecules per unit volume will decrease. Hence, density will decrease and the liquid will rise upward.
Whereas when all the molecules of liquid are heated up then it will release energy into the atmosphere.
Thus, we can conclude that this happens to the portion of liquid that first begins to warm.
- It releases energy to the environment.
Every substance produces light of different colors on the basis of level of energy that is possessed by the electrons of a substance.
<u>Explanation:</u>
Every substance has its level of energy. Depending upon that energy level the light of different colors id produced. There are electrons present in every substance that is made up of atoms and those atoms consist of electrons.
Whenever an atom is heated, the electrons present get excited and their energy level also increases but when their energy level comes down they emit energy in the form of light. The color of that light depends upon the level of energy of an electron. Each substance emits its color.
Producer Alga is A plant and produces food for other organisms <span />
Explanation:
a)An increase in the population results in the depletion of groundwater, causing sinkholes to occur.
The answer is fusion of gametes via fertilization.