Metamorphism is the addition of heat and/or pressure to existing rocks, which causes them to change physically and/or chemically so that they become a new rock. Metamorphic rocks may change so much that they may not resemble the original rock.
Calcium carbonate in shells.
Answer:
The diagram below shows the positions of the Earth and Sun during different times of the Earth year. Each position represents the occurrence of a different season. At which position is the Northern Hemisphere receiving the most hours of sunlight per day?
metalloids are used in electronics as semiconductors.
