Which of the following layers of the Earth is unique among the terrestrial planets?
A) hydrosphere
B) ionosphere
C) mantle
D) crust
E) core
Question 2
What are constellations?
A) groups of galaxies gravitationally bound and close together in the sky
B) groups of stars making an apparent pattern in the celestial sphere
C) groups of stars gravitationally bound and appearing close together in the sky
D) ancient story boards, useless to modern astronomers
E) apparent groupings of stars and planets visible on a given evening
On average, the ratio of carbon to nitrogen is much higher in terrestrial plants than in other major
Examples of four different types of cells from the body. Although each cell has a cell membrane, nuc
Uranus revolves around the Sun once every 84 Earth years. Its average distance from the Sun is rough
Precession: Earth’s axis rotates, or “wobbles”
Layers and Major Structures of the Skin
Earth Present