Answer:
Being able to carbon date fossils
Explanation:
From the daily exposure to radioisotopes of organisms, scientists discovered to carbon date fossils. In carbon dating, the age of organic matter can be determined from the relative proportions of C-12 and C-14 i.e. isotopes of Carbon (carbon 12 and carbon 14). This ratio changes over the years because carbon-14 decays and is not replenished as there is no exchange with the atmosphere. hope this helps you :)
Answer:
It was very tough, even though they were free they still faced discrimination and it was VERY tough to try and make money. Leading many to go into indentured servitude in order to make money to survive.
Explanation:
The answers are 1) Congress proposes an amendment by a<u> two thirds vote, state legislatures</u> ratify the amendment by a <u>three fourths</u> vote; 3) Congress propose is an amendment by <u>two thirds</u> vote in the<u> state convention</u> ratifies the amendment by a <u>three fourths vote</u>; and 4) A <u>national convention</u> proposes an amendment requested by <u>three fourths</u> of states and state legislatures ratify the amendment by <u>three fourths vote</u>
According to Article V of the U.S. Constitution, the Constitution can be changed (By adding or eliminating an amendment) through 2 ways:
- Both the Senate and the House of the U.S. Congress propose an amendment by at least <u>two-thirds</u> of votes in favor, and it later has to be voted on by the <u>state legislatures OR the state conventions</u>. Only if the amendment is approved by at least <u>three-fourths</u> of the state legislatures or the state convention, it becomes a law.
- Or the state legislatures can propose a <u>National Convention</u> with two-thirds of votes. In the National Convention, the amendment can be officially proposed. Only if the amendment is ratified by<u> three-fourths</u> of the state legislatures (or conventions in three-fourths of the states), it becomes a law.
In time a fifth group was added to the cast system-- the untouchables is the correct answer.
The correct answer is option D. " It limited the ports for American trade in China". The system of spheres of influence is the phenomenon of one or more Nations intervening in the affairs of others countries. In this case European countries limited the ports for United States trade in China, in an effort to limite America and China expansion.