I think the correct answer is
(A) changing in abiotic factors
Answer:
they lasted for more than 200 years
Answer:
This is called cluster sampling procedure.
Explanation:
In this type of procedure, a group of elements is considered instead of individual units. This proceddure is usually based on geography, and it's useful due to its efficiency regarding cost and time.
There are a few disadvantages, though: it might not be diverse enough to be significant, and it's possible that some elements of other groups (in this case, other districts) share some features.
Mongolia is landlocked. This means they are surrounded on all sides by another country. This makes it very difficult to get things out of the country to trade. It is more expensive to trade
OR
<span>Because
they are landlocked and it's more expensive to ship goods. The exports
are important. The countries are low and the ability to get stuff is
low.</span>
The correct answer is letter A.
Explanation: The laws were intended to give African Americans even less rights in society by forcing them to change to the North (Great Migration).
Jim Crow Laws was state and local laws enacted in the United States that institutionalized racial segregation, affecting African Americans, Asians, and other ethnic groups. Effective between 1876 and 1965. A "Jim Crow epoch" or a "Jim Crow era" refers to the time when this practice occurs. Major laws require that public schools and most public places (including trains and buses) have separate facilities for whites and blacks. These Jim Crow Laws were distinct from the Black Codes (1800-1866), which restricted African American civil liberties and rights.
