B. Humans were able to settle down and live in one place. No longer having to hunt seasonal and migrating prey, humans could focus on building communities but still relied on trade for supplies that were difficult to find or non native to their areas.
Density (a) is the correct answer
<span>Scientists believe that differences in density cause hot, plastic-like rock in the asthenosphere to rise toward earth's surface. </span>
<u>ANSWER:</u>
The amount of organic matter in all "living organisms" in a habitat is called as Biomass.
<u>EXPLANATION:</u>
- Biomass is called as the total quantity of the living organism present in the certain area or habitat.
- In other word biomass is the organic component that is derived from the living plants and animals.
- These are used as a fuel in industries as well as household purposes. Biomass can be used to "generate the energy" for various purposes.
By passing a law assisting slaves in gaining their freedom in the North .
Answer:
Oceania is a region made up of thousands of islands throughout the Central and South Pacific Ocean.
