Answer:
Sleep apnea is a condition in which the patient or a person lost breathing during sleep. This occurs around 10 to 20 seconds or this period can be longer. It sometimes occurs during an arousal state. The person who is suffering from this problem may not aware that he/she has sleep apnea. It happened and they realize when they feel fatigued during their whole day. Many times person start treatment at the complaints of their partner. When they explain that they snored very loudly and in between for a short period they stop breathing. It is common among obese people and they snore very loud.
- The sleep apnea is of two types:
- The obstructive sleep apnea
- The central sleep apnea
Answer:
Statement that is true about electromagnetic and mechanical waves is:
Option B: Mechanical waves must travel through a medium, but electromagnetic waves do not require a medium to travel.
Explanation:
'Electromagnetic' waves do not need any medium to travel whereas 'mechanical waves' need a medium or matter for transmission. Electromagnetic waves are produced by the 'vibrations' of the charged particles. They can even travel in vacuum.
On the contrary, mechanical waves are caused by the 'wave amplitude'. Mechanical wave can travel in solid, liquid and gas and are considered to be periodic disturbance.
Thus, Option B is the most statement apt explaining the difference between electromagnetic and mechanical waves.
The law of segregation is Mendel's law which explains that traits are passed from parents to offspring individually instead of as pairs, groups or sets. However, this law and the laws mentioned above, minus the principle of genetics, are all part of Mendel's Law of Independent Assortment.
I’m not able to write a paragraph due to not having a whole lot of personal time but here’s some things that have changed due to technology :)
- Communication being much easier
- Easier for speeches towards the country to go out to everyone
- Online shopping
-stocks helping with the economy
