Answer:
In Congress, the House of Representatives used the “gag rule” to prohibit discussions and debates of the anti-slavery petitions.
Answer:
Mass and density
Explanation:
Density of an object is defined as its mass per unit volume. Mathematically, the relation is given by :

m = mass and V = volume
If we know the density of the Eraser and its mass, we can easily find its volume. Hence, the two tools are mass and density.
Answer: Africa
Previous scientific discoveries suggested that they first originated in Europe. With more research they early hominids are believed to have originated from Africa and Migrated to the south.
Answer:
Abraham Lincoln's election
Slavery
State's Rights
The New World crops that added the most calories to European diets and therefore positively impacted sustainable population numbers were "<span>b. Potatoes and maize," since these were the most abundant and had the most nutritional benefits. </span>