Answer: Ulaanbaatar - Capital of Mongolia.
Explanation: Soviet-era buildings, museums within surviving monasteries, and a vibrant conjunction of traditional and 21st-century lifestyles typify the modern city.
Mudflow, slump, weathering, deposition
Extrusive volcanic rocks are formed on the surface of the earth and cool relatively quickly from lava erupted from a volcano. The rapid cooling of lava on the surface does not allow for visible crystals to form. The crystals are minute and most can only be seen under a microscope. Basalt is an example of an extrusive igneous rock.
Intrusive igneous rocks are formed when magma cools within the crust. This magma cools slowly and so crystals develop in these rocks. Granite is an intrusive igneous rock.
The correct answer is D. Use of CFCs
CFCs are very dangerous for the environment and destroy the atmosphere which in turn lowers air quality. They are commonly known as Freon due to a brand of CFCs found in fridges.
