1. lava cooled over several years it forms fertile soil good for growing of some crops like cotton
2. volcanic features are good tourists attractions brings in foreign currency
3. precious stones like diamond and copper are found at volacanic sites
4. water heated at volcanic sites supply homes and industries saving alot of money ethermal energy
goo
The earth orbit the sum
Explanation:
have you ever noticed the night in a winter sky than a summer, the spring summer, fall etc. it is because the earth orbit the sun
Answer:
Big cities, convenience.
Explanation:
In the most densely populated areas of Europe and Russia, there are cities which means that things will be close to people. Cities provide convenient for people, they are more populated.
Answer:
they spread throughout africa
Explanation:
Before Homo sapiens, Homo erectus had already spread throughout Africa and non-Arctic Eurasia by about one million years ago (see Out of Africa I). The oldest known evidence for anatomically modern humans (as of 2017) are fossils found at Jebel Irhoud, Morocco, dated about 300,000 years old.
The volume of the cone is calculated by the formula:
V = B*H/3
r=D/2 = 6/3 = 2
where B is surface area of basis and H is height.
B is circle which fomula for surface is:
B = r^2 * pi = 3^2*3,14 = 9*3,14 = 28.26
from condition of height we write:
H = 3*D = 3*6 = 18
now volume is:
If we express all of that in equation of volume we get:
V = 1/3* 3^2*3,14*18
