Convection current is current which is caused due to the movement of group of molecules and also called difference in pressure and heat in earth
The convection current circulates in mantle when the earth spins whereas when the earth rotate it causes pull of matter in the mantle of earth.
As a result the earth rotation respond to mantle convection current where it travels.
hope it helps
the answer will be c.Thrid class because one expample is the elbow joint
I think b, because it’s the time that the isotope takes to fall to half of its original value
Answer:
C only between nonmetals
Explanation:
Nonmetals form covalent bonds by sharing electrons. In the human body, most bonds are covalent, and the body is made up mostly of carbon, hydrogen, oxygen, you get the idea... which are all nonmetals!
Why not A: Noble gases don’t bond, except in rare cases.
Why not B: Metal-nonmetal bonding is called an ionic bond, because electrons are transferred between ions.
Why not D: Metals usually don’t bond to each other, and this isn’t covalent because they don’t share electrons.
<u>Answer:</u>
<em>Under constant volume in a closed system the relationship between temperature and pressure is directly proportional. </em>
<u>Explanation:</u>
As the pressure increases in the system the temperature also increases in the same order. It is explained in the <em>Gay-Lussac's Law</em>, also known as pressure-temperature law. If a gas is compressed i.e.
The pressure is reduced inside a container (constant volume) then the temperature inside the container is increased, it is practical demonstration of the<em> pressure-temperature law</em>. This mechanism is also used in refrigerators.
