When Strong Solar Winds Are Directed Poleward?

When strong solar winds are displaced poleward by our magnetic fields, we get: intense auroral displays. The oldest rocks on our crust are radioactively dated at about: four billion years old.

Which are places on Earth where convection is operating on a grand scale creating conditions important to life on Earth?

Which are places on Earth where convection is operating on a grand scale, creating conditions important to life on Earth? in the troposphere, such as a summer thunderstorm; at the thermal vents in the rift valleys; in the mantle; in hot springs like Old Faithful; All of the above are good examples.

Which of the following is a factor in determining whether a body in the solar system retains an atmosphere?

There are two primary factors: size and distance from the Sun. Gravity helps planets and moons to hold on to their atmospheres, so small planets/moons such as Mars and the Moon have thin atmospheres.