_____ are layered formations caused by mats of algae or bacteria combined with sediments
A) Metabolites
B) Stromatolites
C) Cellulites
D) Rhyolites
B
Physics & Space Science
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With the understanding of differentiation, which layer of Earth would be the densest?
a. lithosphere b. core c. crust d. hydrosphere e. mantle
Physics & Space Science
Compared to oceanic crust, continental crust is
A) thinner and denser B) thicker and less dense C) thicker and denser D) thinner and less dense
Physics & Space Science
If an object's orbital velocity exceeds a celestial object's escape velocity, the object will follow closed orbits
a. True b. False Indicate whether the statement is true or false
Physics & Space Science
Monochromatic light from a He-Ne laser (? = 632.8 nm) is incident on a diffraction grating containing 5000 lines/cm. Determine the angle of the first-order maximum
a. 18.4° b. 39.2° c. 14.6° d. 27.7° e. 13.9°
Physics & Space Science