7.9A Characteristics of the Solar System

Magnetic lines of force from Earth’s polar  north and south, acting like a giant magnet.

A portion of the electromagnetic spectrum emitted by the Sun; can cause tanning, sun burning, and skin cancers.

If Earth were much smaller than it is now, it would not support life because it would not have enough mass to -

What will have the most influence on determining whether or not a planet's temperature will be suitable to support life?

Ozone contributes to supporting life on earth by blocking - 

Which of the following discoveries about Mars suggests conditions that may have once supported life? Mars has – 

Gas in Earth’s atmosphere that absorbs  most of the damaging high-energy ultraviolet radiation from the Sun.

A continuous stream of charged particles from the Sun- variations in the stream cause aurorae displays.

Area that deflects & traps harmful particles; resulting from an interaction of Earth's magnetic field with solar "wind"

Which of the following characteristics of Jupiter best explains why Jupiter does not support life, while Earth does?

The habitable zone for the star in the diagram shown is between 200 and 250 million km away from the star. 

The entire mass of air that surrounds Earth,  made up of 78% nitrogen, 21% oxygen,  and trace amounts of other gases.

Which data could be collected about a planet to help scientists determine whether or not life exists on that planet?