The Answer is False. Think about why should there even be a low life expectancy when you want to be at full potential. :}
Answer:
When the Black Death swept over Europe and wiped out a third of its population, it also dismantled Feudalism. Serfs were free to leave the lands of the lords to seek higher wages with the vast labor shortages. The land that had usually been the primary source of wealth was now worthless.
Explanation:
Answer:
significant numbers of enslaved african americans were brought to Brazil.
Explanation:
Answer:
Frost Action in temperate regions of the world
Salt weathering in coastal and arid regions
Thermal expansion and contraction in tropical climates
Explanation:
Mechanical weathering is also known as physical weathering, and it entails the disintegration of rocks into smaller fragments.
Weathering processes generally take place slowly with time. Also, they are geography specific. One such means is frost action. In frost action, a freezing and thawing cycle catalyze rock disintegration. When water freezes, it expands 9 percent in volume. The expansion causes stress which forces rock disintegration.
Also, in some coastal and arid regions, salt crystals may grow from saline solutions on evaporation. When these salts crystallize in interstices of rocks, they produce stress and widen pores. This weathering process is very slow.
Another very effective mechanical weathering process which occurs in tropical regions of the world is thermal expansion and contraction. It's a prolonged process in which daily heating and cooling of rocks cause a rock to expand during the day and contract at night. This alternating process causes cracks to open up in a rock body.