Answer:
correct option is B. the purity of a sample of gold
Explanation:
given data
expression = 24 karat
solution
As Karat is used with gold
and it is an measure of the unit of purity of gold
with 24 karat gold is an pure gold
pure gold is very soft so we mix silver or copper and that its each karat indicate that 
th of whole unit
so we can say correct option is B. the purity of a sample of gold
Answer:
They grazed cattle to make the land ready for farming
Explanation:
Texas is a very large state (the second largest in the U.S. after Alaska), and it has different climates and biomes. In general terms, the East is wetter and more suitable for farming, while the West is dry and more suitable for cattle.
In east and central texas, settlers would use cattle to graze the land, and make it suitable for farming, and depending on how east or west of the state they were, they also used irrigation systems to make the land more suitable for growing crops.
I believe is the last one sign a treaty with Great Britain.
Answer:
I think that if we start t flip the economy around and we change some of our systems to make it easier for young people to get better paying jobs and more support for single parents or kids without parents
I think they can see the movement on tectonic plates and help foresee earthquakes
