Answer: During any type of mineral growth, atoms accumulate on crystal faces. A mineral crystal grows during mineral formation as atoms are added to its surfaces, edges and corners, the types of atoms that are added depends on the crystals growing surrounding.
Explanation: The minerals are formed of crystals, which can be microscopic (and even smaller, as in the case of chalcedony) or up to a few meters in length, such as the crystals found in the rock called pegmatite.
3) mounds containing the remains of cities
4) bits of pottery and clay
5) ancient writing
Answer:
The answer is People in Kush introduced and traded silk, gold, and silver to India and Southwestern China.
Explanation:
Because this shows cultural hearth in many ways
Answer:
D. air brakes is the correct answer.
Explanation:
Answer:
Dendrochronologists study tree rings to learn about past climates. Trees in temperate areas form one growth ring per year. Scientists can look at the rings and identify climate conditions during each year of the tree’s life. Scientists found long droughts in both the twelfth and thirteenth centuries. This is the same period when the Anasazi were leaving Chaco Canyon. Under normal conditions it was hard to support their villages in the harsh environment of northern New Mexico. When years of drought occurred, the densely populated Anasazi pueblos could no longer raise enough food. Other forces could have pushed the Anasazi away from Chaco as well.
Explanation:
