A star's color tells us
A) how much energy a star produces.
B) its surface temperature.
C) its rotational speed.
D) both how much energy it produces and its surface temperature.
B
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Name the type of volcano described here: "Thick, steep, lava-flow domes form these young volcanoes made of dacitic and rhyolitic rock."
A) shield volcano B) dome complex volcano C) cinder cone volcano D) composite volcano
When do tidal currents reach their maximum velocity?
a. Midway between slack water and high tide b. During the period of slack water c. Midway between high and low tide d. Midway between low tide and slack water
What is the clumping of smaller particles into large masses?
A) accretion B) nuclear fusion C) density stratification D) oxygen revolution
________ is/are formed during primary wastewater treatment
A) Bacteria B) Inorganic nutrients C) Gray water D) Sludge E) Toxins