Answer;
-Gemstones
Gemstones are nonmetallic minerals that are valued for their beauty and rarity rather than their usefulness.
Explanation;
-Most gemstones form in the Earth's crust; the top layer of the Earth, with a depth of 3 to 25 miles. Only two gemstone varieties, diamond and peridot, form in the Earth's mantle, which represents 80% of the Earth's volume.
-A few gemstones form in the mantle, but all gems are mined in the crust. A precious gemstone has beauty, durability, and rarity, whereas a semiprecious gemstone has only one or two of these qualities.
For diastolic, I know the average is 120/80. Not sure about systolic
It is rock because it is a part if the inner planets
Answer:
I think its chemical energy is not required because passive transport doesn't need energy at all
Answer:
i am researching the answer give me a minute
Explanation: