Limestone may be made up of
A) fragments of granitic and andesitic rocks.
B) animal bones.
C) shell fragments from marine animals.
D) plant debris.
Answer: C
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A U-tube with a cross-sectional area of 1.00 cm2 is open to the atmosphere at both ends. Water is poured into the tube until the water rises part-way along the straight sides, and then 5.00 cm3 of oil is poured into one end
As a result, the top surface of the oil ends up 0.550 cm higher than the water surface on the other side of the U. What is the density of the oil?
A line of equal longitude is called a(n) ______________
Fill in the blank(s) with correct word
A wire has a cross-sectional area of 0.10 mm2. If there are 4.0 × 1028 atoms per cubic meter in this wire, and if each atom contributes 2 free electrons, what is the drift velocity of the electrons when the current in the wire is 6.0 A?
(e = 1.60 × 10-19 C) A) 0.0047 m/s B) 0.0092 m/s C) 0.94 m/s D) 0.019 m/s
The greenhouse effect occurs because carbon dioxide is opaque to infrared radiation
a. True b. False Indicate whether the statement is true or false