Earth/Mars

Water covers what percent of Earth?

• 71%

• 82%

• 60%

• 91%

Sidereal day on Earth last?

• 23hrs, 56 mins, and 4 secs
• 24 hrs
• 365 days
• 27.3 days

Sun moves compared to the background stars by about ____ degree roughly the size of the Moon.

• 1
• 2
• 3
• 4

Earth is gradually speeding up by 1.4 milliseconds every 100 years.

• false
• true

The core is responsible for the Earth's magnetic field

• true
• false

This planet has tectonic plates.

• Earth
• Mars
• Mercury
• Venus

Tags

NGSS.MS-ESS2-1

NGSS.MS-ESS2-3

NGSS.MS-ESS3-2

The reason Earth does not have significant levels of carbon in the air is?

• Tectonic resurfacing and geological activity
• Gravity and people
• plants and solar wind
• carbon cycle and wind

The poles of earth move about 24 miles each year?

• true
• false

Van Allen Belt is a zone of?

• Radiation
• Light
• High wind
• Cold air

Satellites that orbit Earth must be protected from?

• Van Allen Belt
• Sun
• Gravity of Mars
• Aliens