Jellies are an example of which of the following?
A) Cnidarians
B) Coccolithophores
C) Ctenophores
D) Foraminifers
E) Radiolarians
A
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The fundamental principle governing international aviation is that States have sovereign control over their own air space
Indicate whether the statement is true or false
Suggest why people once washed their hands with ashes.
A. The oils on the skin act as a base and reacts with the ashes to produce soap. B. After being burnt in the fire, the acids and bases of the log are neutralized, making it a gentle material to use on the hands. C. The ashes act as an acid and reacts with the skin oils to produce soap. D. The ashes act as a base and reacts with skin oils to produce solutions of soap.
Cleavage is the tendency of a mineral to break along planes of weakness. The planes of weakness are a function of crystal form and
A. chemical bond. B. crystal size. C. hardness. D. symmetry.
A vertical succession of soil horizons is called a soil profile
Indicate whether this statement is true or false.