The sound waves travel from the outer earand in through the auditory canal, causing the eardrum, or tympanic membrane, to vibrate. This, in turn, causes the three small bones, known as the ossicles, or the hammer, the anvil and the stirrup, in the middle ear to move.
The ear is the sensory organ that enables us to hear, and one of the most important senses, the human being uses the means of speech to understand with others, and that depends on the hearing mainly, and divided into three parts ear: external ear, middle and interior.
Most people do not realize that balance is as important as hearing, sight, and other senses. In the absence of balance, we can not keep our bodies in place.
For the first question they can make a huge change in temperature , humidity in certain areas or regions. The can also alter the wind and rate of evaporation .
We should be concerned because it affects the air we breath, and the climate of our planet. With the increased amount of gases, heat is increasing, making glaciers melt, and tempertures rise more and more each year.
Antiparallel means the two DNA strands are parallel to each other, but run in opposite directions. Basically, one strand is upside down. The two strands are held together with hydrogen bonds.