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    why would life on earth be unlikely to survive if the liquid iron core did not produce a magnetic field?

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    Why would life on Earth be unlikely to survive if the liquid iron core did not produce a magnetic field?

    Why would life on Earth be unlikely to survive if the liquid iron core did not produce a magnetic field?? >>

    Why would life on Earth be unlikely to survive if the liquid iron core did not produce a magnetic field?

    Why would life on Earth be unlikely to survive if the liquid iron core did not produce a magnetic field?

    This is a List of Available Answers Options :

    Oxygen would not be attracted to the lower atmosphere which would not allow for respiration.

    Asteroids would not be repelled which would cause constant explosions on the surface.

    The Sun`s heat would not be attracted which would make the surface too cold.

    The radiation from the Sun would not be repelled which would make the surface too hot.

    The best answer is D. The radiation from the Sun would not be repelled which would make the surface too hot..

    Reported from teachers around the world. The correct answer to ❝Why would life on Earth be unlikely to survive if the liquid iron core did not produce a magnetic field?❞ question is D. The radiation from the Sun would not be repelled which would make the surface too hot..

    I Recommend you to read the next question and answer, Namely The atmosphere of Earth is made up of nitrogen, oxygen, water vapor, carbon dioxide, methane, nitrous oxide and ozone. Of these 99% of the atmosphere is composed of : with very accurate answers.

    CLICK TO SEE ANSWER

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    Earth Day quiz: Our world, other worlds – Climate Change: Vital Signs of the Planet

    Vital Signs of the Planet: Global Climate Change and Global Warming. Learn something new on our Earth Day quiz.

    QUESTIONS

    Test your knowledge of how Earth is different from other planets.

    1. Earth is called a 'Goldilocks planet' because:

    A. Its distance from the sun is 'just right' for life.

    B. It has bears on it.

    C. Scientists don't refer to Earth this way.

    2. Mars once had running water that carved canyons and other features into its surface. What happened to the water?

    A. Mars is too far from the sun and cold to sustain water.

    B. Marsquakes caused all the water to seep into cracks in the crust.

    C. An asteroid clobbered Mars and vaporized the water.

    D. Most of Mars' atmosphere and water evaporated.

    3. Earth isn't the only body in the solar system with rivers and lakes. Which other world has similar features?

    A. Mercury (liquid lead)

    B. Saturn's moon Titan (liquid methane)

    C. Saturn (liquid oxygen)

    D. Neptune's moon Triton (liquid ammonia)

    4. Earth and Venus are rocky planets of about the same size, but Earth's average surface temperature is about 59° F, while Venus' is 1350° F, hot enough to melt lead or aluminum. Why the difference?

    A. Venus has a stronger greenhouse effect than Earth's.

    B. Venus is made of denser rock than Earth.

    C. Earth is more geologically active than Venus.

    D. Ice caps and oceans on Earth absorb energy from the atmosphere.

    5. Which circumstance could end life on Earth?

    A. The sun continues to heat up. In a billion years, Earth gets too hot, oceans evaporate, carbon dioxide disappears, plant life dies out.

    B. A massive asteroid smashes into Earth, vaporizing vast swaths of the surface and permanently changing the atmosphere.

    C. Both of the above.

    D. None of the above.

    6. Earth's magnetic field shields us from solar wind and helps hold onto atmosphere and water. To what do we owe this invisible protector?

    A. The aurora borealis.

    B. Plate tectonics.

    C. Earth's circulating liquid metal core.

    D. All of the above

    7. Earth is the only body in the solar system thought to have oceans of liquid water.

    A. True B. False

    8. Earth is smack in the middle of the 'habitable zone' around the sun, where temperatures are right for liquid water to exist.

    A. True B. False

    9. Exoplanets that have lots of volcanic activity and exist in systems with lots of asteroids are bad prospects for looking for extraterrestrial life.

    A. True B. False

    10. Small, Earth-size planets are common in the galaxy.

    A. True B. False

    ANSWERS

    A. Goldilocks planet falls within a star's habitable zone and is neither too close nor too far from a star to rule out liquid water on its surface, and thus life.

    D. Most of Mars's atmosphere and water evaporated.

    B. Saturn's moon Titan (liquid methane)

    A. Venus's atmosphere is almost all heat-trapping carbon dioxide.

    C. Scientists believe the first scenario is a certainty and the second just a matter of time.

    C. The magnetic field is essential for life and a defining characteristic of Earth.

    False. Scientists think Jupiter's moon Europa has an ocean of liquid water under its icy surface.

    False. The habitable zone around the sun extends roughly from Venus to Mars. Earth is relatively close to the inner (warm) edge, not the middle.

    False. Volcanoes push out water vapor and other chemicals that help make a life-sustaining atmosphere, and icy asteroids and comets may have helped bring water to Earth's surface when it was forming.

    True. The Kepler satellite mission found that small planets are the most common in the galaxy. Small planets are more likely to have a 'rocky' (solid) surface, which is conducive to life at least as we know it.

    Latest Resources

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    Source : climate.nasa.gov

    7.9 A B Goldilocks Conditions & Accomadations

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    QUIZ

    7.9 A B Goldilocks Conditions & Acc...

    7.9 A B Goldilocks Conditions & Acc... 55%

    261 7th Science Alonzo Martinez III 3 years

    29 Qs

    1. Multiple-choice 30 seconds Q.

    Which accommodation will most likely protect the bone health of the crew on a space mission?

    answer choices

    Drinking extra fluids

    Eating more calories

    Wearing protective clothing while inside the space vechicle

    Engaging in a daily routine using exercise equipment

    2. Multiple-choice 30 seconds Q.

    Which of the following is NOT an accommodation provided by the astronaut's suit?

    answer choices Insulation Air Pressure Microgravity Waste Management 3. Multiple-choice 30 seconds Q.

    How does the space suit backpack help astronauts breathe in a space environment?

    answer choices

    Maintains air pressure to keep bodily fluids from boiling

    Stabilizes an internal temperature of 22oC (72oF)

    Collects urine and solid wastes

    Provides O2 for inhaling and canisters to collect CO2

    4. Multiple-choice 30 seconds Q.

    Which of the following is not determined by Earth's proximity to the Sun?

    answer choices

    the amount of light and heat the Earth receives

    the presence of water in liquid form on the Earth's surface

    the length of periods of day and night

    the existence of a stable environmental temperature

    5. Multiple-choice 30 seconds Q.

    According to the above information, diagram and table, why would Planet E not be a good place to look for life?

    answer choices Too Hot No Oxygen Too Cold No water 6. Multiple-choice 30 seconds Q.

    All of the following are ways that the atmosphere makes the existence of life on Earth possible except ---

    answer choices

    maintains a constant temperature

    shields Earth from small collisions

    offers protection from radiation

    allows for gas exchange between plants and animals

    7. Multiple-choice 30 seconds Q.

    The equipment inside of a space vehicle must be attached by cords to accommodate for which factor?

    answer choices Pressure Friction Radiation Microgravity 8. Multiple-choice 30 seconds Q.

    Based on the information above, which planet would be the most likely place to observe for life?

    answer choices A B C D 9. Multiple-choice 30 seconds Q.

    Why must astronaut's have their own supply of oxygen within a spacesuit?

    answer choices

    The gases in space are poisonous to humans

    Extreme temperatures in space would harm them

    There is no atmosphere in space

    They could float off into space

    10. Multiple-choice 30 seconds Q.

    What is another reason we can live on Earth according to our solar system's layout?

    answer choices

    Proximity to the Sun

    Number of life forms

    Speed of rotation

    Direction of revolution

    11. Multiple-choice 30 seconds Q.

    Which of the following characteristics most likely prohibits life on Mercury?

    answer choices

    Mercury's proximity to the sun

    Mercury is similar to Earth's size

    Mercury's poles contain ice

    Mercury is too far away from the sun.

    12. Multiple-choice 30 seconds Q.

    Which characteristic best supports the possibility of life on Mars?

    answer choices

    Water molecules have been found on Mars surface

    The tilt of Mars on its axis is very similar to Earth, causing similar seasons

    95% of the atmosphere on Mars is made up of CO2

    Mars and Earth are similar in size, shape, and density

    13. Multiple-choice 30 seconds Q.

    Scientists have found evidence that in the past there may have been liquid water on the surface of the planet Mars. Why would scientists be interested in this information?

    answer choices

    Life has only been found where there is water

    Martians might be afraid of water

    Earth could get water from Mars if necessary

    This means there is currently life on Mars

    14. Multiple-choice 30 seconds Q.

    Which of the following factors is not essential for supporting life on Earth?

    answer choices

    Atmosphere containing oxygen

    Distance of the sun

    Presence of the Moon

    Water in liquid form

    15. Multiple-choice 30 seconds Q.

    Which of the following is not provided by the Sun?

    answer choices

    Appropriate temperature for life

    Light for photosynthesis

    Maintenance of Earth's orbit

    Rotation of Earth on its axis

    16. Multiple-choice 30 seconds Q.

    The gases in the atmosphere protect us by ---

    answer choices

    blocking out dangerous rays from the Sun

    creating the oxygen needed for respiration

    expanding and contracting to produce heat

    protecting us from the vacuum of space

    17. Multiple-choice 30 seconds Q.

    The atmosphere of Earth is made up of nitrogen, oxygen, water vapor, carbon dioxide, methane, nitrous oxide and ozone. Of these 99% of the atmosphere is composed of :

    answer choices

    Water Vapor and Ozone

    Oxygen and Nitrogen

    Nitrogen and Methane

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