A sedimentary structure that forms a polygonal pattern in a fine-grained sedimentary layer when the layer dries up because it was exposed to the air is known as _____________
a) Ripple mark
b) Cross bed
c) Burrow
d) Mud crack
e) Graded bed
Ans: d) Mud crack
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Indicate whether the statement is true or false
What atmospheric gas is common in the outer planets but rare in the inner planets?
A) Argon B) Hydrogen C) Carbon Dioxide D) Nitrogen
Imagine a class debate between people representing the developing countries and people representing the developed countries
Characterize the arguments of the two sides in terms of the issues surrounding population growth, energy use, resource use, and sustainable development. Then describe what should be the common interests between the two.
Competitive exclusion occurs as a result of ________
A) resource partitioning B) parasitism C) intraspecific competition D) interspecific competition E) predation