Answer:The Law of Conservation of Mass states that mass is conserved in physical and chemical changes. Students explore this concept by taking initial masses, making predictions, and finding final masses of physical and chemical changes. Students observe water changing from ice to a liquid, a piece of cardboard being cut up, salt dissolving in water, Alka-Seltzer reacting in water, and water's physical property of cohesiveness being disrupted by soap.
Explanation:
Answer:
mantle
Explanation:
The mantle has lava, and lava is hot. When lava gets close to water, it heats it.
Lack of vitamin D has been linked to increased risk for autoimmune diseases.
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