Igneous rock and metamorphic rock.
Answer:
Agriculture was the key development in the rise of sedentary human civilization, whereby farming of domesticated species created food surpluses that enabled people to live in cities. The history of agriculture began thousands of years ago. ... Pigs, sheep and cattle were domesticated over 10,000 years ago.
Explanation:
Answer:
24
Explanation:
Given parameters:
Atomic number = 24
Mass number = 52
Unknown:
Number of electrons in the uncharged atom of chromium = ?
Solution:
In an uncharged atom of chromium, the number of protons and electrons are the same.
Once we can find the number protons, we can simply equate it to the number of electrons.
- Atomic number is the number of protons in an atom.
- Therefore, since the atomic number is 24, the number of protons likewise is 24;
Number of electrons is 24
The Ancient Maya<span>. </span>Mayan<span> civilization lasted for more than 2,000 years, but the period from about 300 A.D. to 900 A.D., known as the Classic Period, was its heyday. During that time, the </span>Maya<span> developed a complex understanding of astronomy.</span>
