What is "twinkling"? (in telescopes)
A. Flashing of quickly revolving starts
B. Distortion of light in the very large mirrors of refracting telescopes caused by moving air currents
<u>C. Distortion of light by lenses more that three feet across due to sagging class </u>
D. Interference between the lenses of a refracting telescope that distorts the final image
AC is the kind of electrical flow we get from a typical electrical outlet in a home. AC is when the electrons flow in two directions, from the positive to the negative terminal and from the negative to the positive terminal, 'alternating' between the two directions.
Chromosomes are the part of the DNA that determine traits
The four basic neccessities in emergency period are;
- Food
- Water
- Shealter
- Clothing
<h3>What is an emergency?</h3>
The term emergency refers to any period in which there is scarcity of basic resources such as during war.
In such times there are four basic neccessities that one must think about and they are;
- Food
- Water
- Shealter
- Clothing
Learn more about basic neccessities:brainly.com/question/6963889?
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