7.9A Characteristics of the Solar System

Front

The entire mass of air that surrounds Earth, and is made of 78% nitrogen, 21% oxygen, and traces of other gases is called...

Back

atmosphere

Front

An area that deflects and traps harmful particles, and results from the interaction between Earth's magnetic field and solar winds is called...

Back

magnetosphere

Front

Which of these is a portion of the electromagnetic spectrum emitted by the Sun that can cause sun burns: Ultraviolet Radiation, Ozone Layer, Solar Winds?

Back

Ultraviolet Radiation

Front

A gas in Earth's atmosphere that absorbs MOST of the damaging high-energy ultraviolet radiation from the Sun is the...

Back

ozone layer

Front

A continuous stream of charged particles from the Sun, some variations cause aurorae displays and geomagnetic storms- these are called...

Back

solar winds

Front

Magnetic lines of force from Earth's polar north and south; they act like a giant magnet- known as...

Back

Earth's Magnetic Field

Front

If the Earth were any closer to the Sun, how would conditions for life on Earth change?

Back

The conditions would be too hot to support life.

Front

Which of the following is a reason that life exists on Earth?
distance from the Sun,
presence of an atmosphere and magnetic field,
liquid water,
all of these are reasons life exists on Earth

Back

all of these are reasons life exists on Earth

Front

Why is Earth's magnetic field important to the survival of life?

Back

the magnetic field shields Earth from harmful particles that stream from the Sun

Front

The atmosphere helps keep Earth's temperatures stable and it contains oxygen for breathing.

Back

True