Everything on earth is made up of a fundamental particles that is impossible to see with the naked eye this particle is called the atom. There a over a 100 atoms or more in science. At the center of the atom is the nucleus which contains protons and neutrons. Electrons can be found moving around the orbitals or energy levels , while most of the area outside the nucleus is empty space .
Most of the mass of an atom is concentrated at the center of the nucleus.
Atoms are made up of three subatomic particles called
1. Protons
2. Neurons
3. Electrons
protons - has positively charge particles with a charge
of +1
Neutrons- has no charge it is neutral, 0 charge.
Electrons- has a negative charge particles with an charge of -1.
Relative mass of a particle is the mass compared to the mass of a proton
Relative charge of a particle is the charge compared to the charge on a proton.
Answer:
Polar Bears
Polar bears have white fur which helps aid in camouflaging against the snow. They also have small rounded ears that act as a shield letting no water in to freeze ear drums and reduce heat loss.
Black Bears
Black bears absorb heat through their black skin. Their thick fur and fat act as an insulation and their large bodies reduce heat loss.
They both use their large claws and teeth to catch prey and provide for themselves
Explanation:
If you need any other examples of adaptions of bears let me know because there are a lot I just added the main ones!
Refining oil pollutes the air with nitrogen dioxide
Answer:
<h2>Source of Light in Universe</h2>
<h3>Although the Sun doesn't light up the other stars, it does provide the daylight here on Earth; and the moon and planets we see are illuminated by that same sunlight. All stars produce light (and other kinds of energy) through nuclear reactions, using the energy stored in the tiny nucleus at the center of atoms.</h3>
Explanation:
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Population growth is difficult to predict because unforeseen events can alter birth rates, death rates, migration, or the resource limits on population growth
Such policies could have a significant effect on global fertility rates.
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