What characterized the sphenopsid plant group?


This group has jointed stems and horizontal underground stem-bearing roots.

Environmental & Atmospheric Sciences

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Which two satellites are the only ones in the solar system known to have substantial atmosphere?

A) Neptune's moon Triton and Jupiter's moon Io B) Saturn's moon Titan and Neptune's moon Triton C) Uranus's moon Miranda and Saturn's moon Rhea D) Jupiter's moon Io and Earth's moon

Environmental & Atmospheric Sciences

The major difference between a mesa and a butte is one of

A. shape B. rock type C. elevation D. size

Environmental & Atmospheric Sciences

Discuss how carbon atoms come together to form diamond. What will be an ideal response?

Environmental & Atmospheric Sciences

What causes the mantle low-velocity zone?

What will be an ideal response?

Environmental & Atmospheric Sciences