<span>False, mining has both short term and long term affects on the earth depending on what kind of mine it is and where it is located. some non fuel material can be mined with no direct impact on the environment. But metal minerals must be treated with chemicals to extract the used material. Toxins can be created, and when these toxins leak into streams and lakes the poisons often kill everything it touches. The affects last forever.</span>
Answer:
12.gon - An interior angle measures 150°
Called a Dodecagon, the sum of all of its interior angles is 1,800° therefore each individual angle is;
= 1,800/12
= 150°
15-gon - An exterior angle measures 24°
The sum of all the exterior angles of a polygon add up to 360 so a polygon with a 24° exterior angle is;
= 360/24
= 15°
16-gon - The sum of the interior angles is 2,520°
Known as a hexadecagon, each interior angle of this polygon is a 157.5° and when added up this comes to 2,520°.
18-gon - An interior angle measures 160°
The formula for calculating the interior angle of a polygon is;
Angle = (n−2) × 180° / n
160 = (n−2) × 180° / n
160n = 180n - 360
360 = 20n
n = 18
Other tiles
The sum of the exterior angles is 180º - all exterior angles must add up to 360º so this does not exist.
The sum of the interior angles is 2,160° - this is a 14 sided polygon which is not listed in the options.
In seafloor spreading, new oceanic crust is added at the mid-ocean ridge, and, as intrusion continues, seafloor moves toward the edge of the oceanic plate, where it is ultimately pulled back down into the magma below. ... It has deep trenches and high ridges.
Answer:
New York has tried to slow the spread of the coronavirus by closing its schools, shutting down its nonessential businesses and urging its residents to stay home almost around the clock. But it faces a distinct obstacle in trying to stem new cases: its cheek-by-jowl density.
New York is far more crowded than any other major city in the United States. It has 28,000 residents per square mile, while San Francisco, the next most jammed city, has 17,000, according to data from the U.S. Census Bureau.
All of those people, in such a small space, appear to have helped the virus spread rapidly through packed subway trains, busy playgrounds and hivelike apartment buildings, forming ever-widening circles of infections and making New York the nation’s
Explanation:
Answer:
An economy based on exporting oil and gas.
Explanation:
Russia in the 21st century is a developing country. It has transformed its economy and society significantly since the 1990s, and ever since it has had a growing economy. Also, unlike the command economy of the past, Russia's economy has gradually been shifting toward a market economy, which has helped immensely in its development.
The basis of the economy of Russia is the export of oil and gas, two highly demanded resources across the world that the country has in abundance. Seeing that relying on only these two resources to drive the economy can be risky, the government has helped in developing other economic branches as well. Agriculture for example has skyrocketed and modernized, making Russia one of the biggest agricultural producers in the world.
