Answer:
c. at depths of about 50 to 200 km below earth's surface
Explanation:
Rocks begins to melt when sufficient temperature and pressure is applied on them.
To attain these conditions of temperature and pressure, a rock must be taken deep into the earth. With depth, the geothermal gradient of the earth increases. The geothermal gradient determines the temperature conditions a rock might exposed to deep within the crust. Rocks usually melt below the crustal levels and at the mantle.
The crust runs from about 0-100km in depth and the mantle takes off from there. We expect melting to fall beyond this region.
Answer:
yes i think that
Explanation:
abcd are my options hmmmm im going too say c or a
Answer:
Explanation
Be active on social media. Now I don't mean to be addicted to it, like alot of people are. Instead, just put yourself out there. Be friendly and social, and remember think before you post. This is because your things you post and do online are permantely stored, even if you delete it. Many job employers and schools look and do a quick look up of you online, just to check your background and see if you are fit. Also to keep a positive digital footprint, try to delete and deactivate accounts online, ex. social platform, blogs, because then it won't be searchable online.
Answer: b
Explanation: Obsidian is a naturally occurring volcanic glass formed as an extrusive igneous rock
