This statement is true: <span>The mineral ores for gold and silver are commonly found in the earth's crust.
These two types of metals are known as native metals because they are naturally occurring within the Earth's stratosphere. These metals are usually found through mining processes because they are often found mixed with sediments and other soil components. One method of acquiring gold is called gold panning while silver is obtained mixed with silver sulfide and sulfosalt minerals.</span>
A chemical reaction in which energy is released to its surroundings. It exits immediately
Answer:
The white matter fibers are the main component of the brain. Three different types of white matter fiber are :
Commissural fibers:
This fiber is important for the connection of the corresponding left hemisphere and right hemisphere of the brain.
Projection fibers:
These fibers helps in the connection of the brain stem and the spinal cord with the cerebral cortex.
Association fibers:
These fibers are associated with the connection of the brain regions within the same hemisphere of the brain.
It's all dependent on the amount of oxygen your lungs take in and deliver to the heart
Biological macromolecules are important cellular components, they have a wide array of functions necessary for survival and growth of living organisms. There are four major classes of biological macromolecules
-carbohydrates
-lipids
-proteins
-nucleic acids.
