Podcast
Questions and Answers
What happens when the core of the sun heats up after the hydrogen supply runs out?
What happens when the core of the sun heats up after the hydrogen supply runs out?
- A fusion reaction in the next core zone begins (correct)
- The sun starts to shrink and cool down
- The sun's brightness decreases significantly
- The earth is swallowed up by the expanded sun
What will happen to the core of the sun when the hydrogen supply runs out?
What will happen to the core of the sun when the hydrogen supply runs out?
- It will shrink and heat up (correct)
- It will expand and cool down
- It will disintegrate and disappear
- It will remain the same size and temperature
What is the next phase of the sun after it becomes a Red Giant star?
What is the next phase of the sun after it becomes a Red Giant star?
- Neutron Star
- White Dwarf
- Supergiant (correct)
- Black Dwarf
What temperature threshold is needed for carbon fusion to occur?
What temperature threshold is needed for carbon fusion to occur?
What does the depletion of helium in the sun lead to?
What does the depletion of helium in the sun lead to?
What is the estimated duration for which the Sun can last on core hydrogen fusion?
What is the estimated duration for which the Sun can last on core hydrogen fusion?
What happens to the core of the sun when it can no longer balance the pull due to gravity?
What happens to the core of the sun when it can no longer balance the pull due to gravity?
What is the primary cause of the extra warming on Earth, as mentioned in the text?
What is the primary cause of the extra warming on Earth, as mentioned in the text?
What is the main reason that certain gases are responsible for trapping the sun's radiation, while others are not?
What is the main reason that certain gases are responsible for trapping the sun's radiation, while others are not?
What is the approximate percentage increase in the concentration of CO2 in the atmosphere since 1750?
What is the approximate percentage increase in the concentration of CO2 in the atmosphere since 1750?
Which of the following gases are transparent to solar and earth radiation, as per the text?
Which of the following gases are transparent to solar and earth radiation, as per the text?
What is the main reason that molecules of certain gases can effectively trap the out-going radiation from the earth's surface?
What is the main reason that molecules of certain gases can effectively trap the out-going radiation from the earth's surface?
What is the average surface temperature of the Earth in Celsius, as mentioned in the text?
What is the average surface temperature of the Earth in Celsius, as mentioned in the text?
How much rise in the earth's surface temperature over the next 100 years is predicted due to the increased CO2 greenhouse effect, as per some estimates mentioned in the text?
How much rise in the earth's surface temperature over the next 100 years is predicted due to the increased CO2 greenhouse effect, as per some estimates mentioned in the text?
What is the approximate percentage of the sun's radiation that reflects off our atmosphere, according to the text?
What is the approximate percentage of the sun's radiation that reflects off our atmosphere, according to the text?
