One method of geologic dating is dendrochronology, or the science of tree ring dating. Based on what you know about tree rings, how could you determine the age of the tree? Would this be an example of relative dating or numerical dating?
What will be an ideal response?
Answer: You can date the tree by counting the rings. (Most tree species produce an annual ring.) This would be an example of numerical dating.
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Which of the following distinguishes a neurotransmitter from a hormone?
A) the diversity of compounds in the classification B) the chemical structure of the compounds C) the source of the compound D) the distance over which it acts E) all of the above
Which of the following are requirements for any substance defined as a mineral?
A. Are composed of one or more rocks B. Have identifiable characteristics C. Must contain more than two different types of atoms D. All minerals have a single, specific color E. Naturally-forming F. Must be a solid
What is the Caribbean diaspora?
A) the refugee movements within each country in the region B) the movement of Africans into the region during the twentieth century C) the gradual separation of the islands through the tectonic movement of the Caribbean Plate D) the increasing number of international tourists to the region during the last twenty years E) the economic flight of Caribbean peoples across the globe
Is flow velocity usually greater at the head or at the mouth of a stream? Explain
What will be an ideal response?