Vascular plants having flowers and seeds; the flowering plants:a
ostracoderms d. gymnosperms
b. spores e. therapsids
c. angiosperms
C
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Which of the following statements describes an isotope?
A. element with the same number of protons but a different number of electrons B. element with the same number of protons but a different number of neutrons C. element with the same number of neutrons but a different number of electrons D. element with the same number of neutrons but a different number of protons E. none of the above
A compass is used to measure the angle of ____
A)intersection of a strike line and a dip B)dip from horizontal of a geologic structure C)90 degrees from horizontal of a strike line D)a strike slip zone with respect to the sun E)a strike line's orientation with respect to north
What is the main difference between a tornado and a funnel cloud?
What will be an ideal response?
Oil was originally chosen as an alternative to coal because it was more convenient and less expensive.
Answer the following statement true (T) or false (F)