The correct answer is letter B.
Explanation: Even for the best studied star we can only measure 4 parameters: mass, luminosity, radius and chemical composition of the outer layers. We can determine the structure of the star with these parameters, because we have one more condition: the constancy of the stars over long periods of time. Even variable stars have long-term stability of the average structure. The existence of fossil algae on the earth over 1 billion years old and fossils up to 3.5 billion years old is evidence that the temperature of the earth cannot have changed by more than about 20 ° C. Therefore, the interior of the stars must be in perfect balance.
Answer:
Adam Smith is the father of economics
Explanation:
hope it helps, brainliest please have a nice day ahead>3
Back in the day it was known that society was made to have women cleaning and cooking food and doing the little stuff, kids were ment to go to school and get good grades, if they didnt get good grades they would get pumished and even hit. the men where told to work and do all the manly things in life. and the native americans were known as a threat. but one day the women desided that enought was an enogh and they started the womens right movement. they went to jail just to make things equal for us girls to live how we are living today. native americans are our well known friends. infact if tou like going to consinos its on their land not ours
The type of unemployment that rises as the economy goes into a recession is called...<span>
cyclical.</span>
