Which of the following characteristics are necessary for a fossil to be a good index fossil? (Choose all that apply) had a broad geographic distribution
easy to identify at the species level
an invertebrate
short-lived

A good index fossil is one with four characteristics: it is distinctive, widespread, abundant, and limited in geologic time. Because most fossil-bearing rocks formed in the ocean, the major index fossils are marine organisms.

Explanation:

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he movement of air through earth's or any planet's atmosphere is called wind, and the main cause of earth's winds is uneven heating by the sun. this uneven heating causes changes of atmospheric pressure, and winds blow from regions with high pressure to those with low pressure.

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