Which of the following is true of the inner core of earth?
2 answers:
Answer:
Option B, The average temperature is 4,000 degrees.
Explanation:
The temperature in the inner core of earth is extremely high with the maximum temperature record of degree Celsius and an average temperature of
degree Celsius.
The inner core of earth crust is made up of molten iron and nickel which rotate or move continuously , thereby producing earth's magnetic field. The iron and nickel is heavier than several element on planet earth.
Hence, option B is correct.
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Answer:
D. There is no enough oxygen in the culture fluid
Explanation:
The cells in the test tube need to carryout one of the important metabolic processes of living organisms - respiration. The process involves the breakdown of glucose to generate energy for other metabolic processes in the cell.
Respiration can be carried out in the presence of oxygen (aerobic) or in the absence of oxygen (anaerobic). Human cells are primarily aerobic but can carryout respiration anaerobically in the presence of inadequate oxygen.
For aerobic respiration, glucose is broken down in the presence of oxygen to produce carbon-dioxide, water and energy in the form of ATP:
<em>In the absence of oxygen, the glucose becomes converted to lactic acid and a smaller amount of ATP is produced as compared to aerobic respiration.</em>
<em>Hence, lactic acid gradually builds up in the absence of oxygen due to anaerobic respiration.</em>
The correct option is D.