The answer would have to be A.
The term bioinvasion means that a plant or animal is not native in their current location and often spreads to a dangerous degree which is harmful to it's new environment, to the economy and to human health. An example of this is the Asian longhorned beetle which infected and damaged millions of acres of hardwood trees, as it was introduced in the United States.
C. the Spratly island and Taiwan claimed it
Answer:
b. dred scott vs sandford
Explanation:
The correct answer is letter b.
It happened in 1857, when Dred Scott, an enslaved black man, whose owners had taken him from a slave-holding state to a slave-free state and then brought back to the slave-holding state. With this, he argued that since he was taken into free territory, he was legally free by the Constitution. The US supreme court then ruled that the constitution was not valid to a black person :(
The answer is the second one: Many Mongolians are pastoral nomads who raise livestock for a living.
