Answer:
C: A solid metal ball in the middle of a pool of liquid.
Explanation:
Since the student is studying the earth, the core area is made up of a solid metal ball in the middle of a pool of a liquid.
- The core is the inner most part of the earth.
- It exists in the middle of the earth.
- The core is divide into two layers; inner core and outer core.
- The inner core is a solid ball of metal.
- The outer core is a liquid metal under high temperature and pressure.
Inheritance is the process by which traits are passed from the parents to their offspring. The basic unit of inheritance in human is the DNA. For traits to be passed from the parent to the offspring, the DNA in the cell must be duplicated and this happens through the process of cellular reproduction.
Answer:
Transpiration is the process of water movement through a plant and its evaporation from aerial parts, such as leaves, stems and flowers. Water is necessary for plants but only a small amount of water taken up by the roots is used for growth and metabolism. The remaining 97–99.5% is lost by transpiration and guttation.
B. biodiversity of an area has a large impact on the ecosystem stability of that area. ... This increase in complexity makes it more likely that the ecosystem will return to a stable state after a disturbance, because the ecosystem has more ways to respond to a disturbance and fix problems.
Answer: Earth's main sulfur sink is the oceans SO42−, where it is the major oxidizing agent. When SO42− is assimilated by organisms, it is reduced and converted to organic sulfur, which is an essential component of proteins.
Explanation:
