Nitrogen — 78 percent.
Oxygen — 21 percent.
Argon — 0.93 percent.
Carbon dioxide — 0.04 percent.
Answer:
The correct answer will be-False
Explanation:
Calcitonin is a hormone produced by the parafollicular cells present in the thyroid gland.
The Calcitonin plays an important role in the human body as they reduce the level of phosphate and calcium in the blood.
The calcitonin is produced by the C-cells in response to the amount of the calcium levels in the blood as a high concentration of calcium cause release of calcitonin.
Since the calcitonin is involved in the regulation of calcium of blood and not bones therefore, false is the correct answer.
Dr. mengele invented the scientific method, which is controlling variables in experimentation to find evidence for theories.
The right option is; A. Solar
Solar energy is sustainable.
Solar energy is considered as a renewable energy resource. Solar energy is sustainable because it occurs naturally and it is derived from a source that is inexhaustible (sun). It can be depended on for the long term. All renewable energy sources such as geothermal, wind, biomass and hydro are sustainable.
