Answer:
D. were widespread due to many low-lying land masses.
Explanation:
Cambrian Period was the first geological period of the Paleozoic Era, it occurred between two ice ages; Proterozoic and Ordovician. During these era, there were mass extinctions due to the decrease in global temperature.
Cambrian seas were widespread due to many low-lying land masses.
Answer:
Its both but that's controversial. Good because Africans were introduced to new things and were able to create new jobs they learned how to trade, bad because their natural resources were degraded, the Europeans brought diseases to the live stock and Africans, urbanization which isn't always a bad thing but in this case the Africans didn't how to properly "take care" of an urban area.
Explanation:
Its your choice to make there's obviously other reasons but these are the ones I thought of .
7 there are seven continents total
It was the Gold Rush. The California Gold Rush began in 1848 and drew thousands of people who were looking to make a fortune.
Answer:
I believe that the answer is true.