6.Question 6Which of the following is NOT part of the explanation for why we continue to have near earth asteroids hit the earth even though the dynamical lifetime of a typical NEA is very short compared to the age of the solar system? (by dynamical lifetime we mean the time before it is likely to hit a planet or get ejected from the solar system) 1 pointAll of these are trueThe existence of families of asteroids formed by asteroid impact and shatteringHeating of small asteroids on one side coupled with rotation causing orbital driftResonances with Jupiter and Saturn in the asteroid belt leading to removal of objects in the asteroid beltOur improved technology which allows us to find ever-smaller near earth asteroidsThe high current eccentricities and inclinations of asteroids population leading to shattering impactsThe Yarkovsky effect

The question is asking which of the listed options is NOT a reason why near earth asteroids (NEAs) continue to hit the earth, despite their dynamical lifetime being short compared to the age of the solar system. The options are:

1. The existence of families of asteroids formed by asteroid impact and shattering
2. Heating of small asteroids on one side coupled with rotation causing orbital drift
3. Resonances with Jupiter and Saturn in the asteroid belt leading to removal of objects in the asteroid belt
4. Our improved technology which allows us to find ever-smaller near earth asteroids
5. The high current eccentricities and inclinations of asteroids population leading to shattering impacts
6. The Yarkovsky effect

The correct answer would be the one that does not contribute to the continued impact of NEAs on Earth. However, without the correct answer provided, it's impossible to definitively answer this question.

It's worth noting that all the options listed seem to be factors that could contribute to the continued impact of NEAs on Earth. For example, the existence of asteroid families, the heating of asteroids, resonances with Jupiter and Saturn, and the Yarkovsky effect all contribute to the movement and behavior of asteroids. Improved technology allows us to detect more NEAs, but it doesn't contribute to their impact on Earth. The high current eccentricities and inclinations could lead to more impacts.

Therefore, the option that seems least likely to contribute to the continued impact of NEAs on Earth is "Our improved technology which allows us to find ever-smaller near earth asteroids". This is because while this technology allows us to detect more asteroids, it doesn't actually affect the behavior or trajectory of the asteroids themselves.

The question is asking which of the listed options is NOT a reason why near earth asteroids (NEAs) continue to hit the earth, despite their dynamical lifetime being short compared to the age of the solar system. The options are:

1. The existence of families of asteroids formed by asteroid impact and shattering
2. Heating of small asteroids on one side coupled with rotation causing orbital drift
3. Resonances with Jupiter and Saturn in the asteroid belt leading to removal of objects in the asteroid belt
4. Our improved technology which allows us to find ever-smaller near earth asteroids
5. The high current eccentricities and inclinations of asteroids population leading to shattering impacts
6. The Yarkovsky effect

The question seems to be missing the correct answer. All the options listed are indeed factors that contribute to the continued presence of NEAs. However, the option "Our improved technology which allows us to find ever-smaller near earth asteroids" is not a reason why NEAs continue to hit the earth, but rather a reason why we are able to detect more of them. Therefore, this could be considered the correct answer to the question as it is the only one that does not explain why we continue to have NEAs hit the earth.