Option c is correct. The best description of the pattern of Swedish American ethnicity is that there is a a Swedish ethnic majority in the northern half of the state.
This question involves a map so to answer it one must take a close look at the map. The map is made up of black, grey and white areas.
The answer to this question can be seen in the <u>black area</u>. This part has the most percentage of about 15% to 25%.
The Northern part of the map is the at the top of the map. Therefore we conclude that the majority of 15 to 25 percent are in the Northern half of the state.
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It's because there are bigger faults in Caliifornia.Which is San andres which is 800 miles which cuts through California.We all know earth is contesntly changing, and earthquakes are apart of earth chaging.So every times the tictonic plates moves it causes California, and other states close by to aswell, but not as bad.
More than 75 percent
Explanation:
Let us carefully analyze this problem:
The half life of the rubidium isotope = 50 billion years
The half-life of a radioactive isotope is the time it takes for it to decay to half of its original amount.
Every 50years, we know that a rubidium isotope would split into half.
Initially when the isotope was formed, we would only have the parent atoms there. There wont be any daughter;
ratio of parent to daughter = 100 : 0
When the isotope decays to half; we would have equal number of parent and daughter:
ratio of parent to daughter at half life = 50 : 50
The age of the earth is about 4.6billion years;
this is;
x 100 = 9.2% of the half-life of the rubidium isotope.
At this time, we should know that only 9.2 percent of the daughter would have been formed.
The remaining parent would be 100 - 9.2 = 90.8% would still be left undecayed.
The ratio of parent to daughter = 90.8 : 9.2
This is more than 75% of the parent
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Answer:
see I need help for chemistry pls anyone here helps me I must submit before 10:30
It would be Around 2-4 pm