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.
Climate and temperature affect all aspects of an individual's behavior for example in hot seasons people have a tendency to outgoings like picnics, sports, walking to piers and going to the beach which make people more friendly and socialize with strangers. However in some cases people with sweating problems and smelling can make them feel uncomfortable in warm weather and may lead them to be more nervous and anxious when communicating with other people.
Hope this helps.
Answer:
OMGGG I USE THE SAME THING UR USING
Explanation:
and i believe the answer is a. i may be mistaken so wait for someone else to answer
