Answer:
option (1) quartz
Explanation:
The rhyolite is an extrusive igneous rock.
The color of rhyolite is generally pink or gray with very fine grains.
The Rhyolite is composed of quartz, sanidine, and plagioclase,
It also consists of minor amounts of biotite and hornblende.
It has very high silica content.
Hence,
The answer is option (1) quartz
Answer:
The value of ∠QPR is 40°.
Answer:
Stay away from slide area, watch for flooding and dangers, make sure that YOU are safe.
Explanation:
When its safe check for trapped and if someones trapped contact local authorities. Make sure to stay safe.
People migrate to the new lands, populate, build cities, created businesses, trade, settle.
Answer:
1. 
2. The equation to calculate Density is Mass / Volume. You are given that the density is 5.45 and the mass is 65; 5.45 = 65 / v. So v = 65 / 5.45; v = 11.93 mL (or if you want your answer to consider significant figures, v = 12 mL).
3.
m = 43.5 g
V = 50 mL
d = 43.5 g / 50 mL = 0.87 g/mL
Density of this cooking oil is 0.87 g/mL.
Explanation:
