What are the four intervals of time-listed from biggest to smallest.

From largest to smallest, this hierarchy includes eons, eras, periods, epochs, and ages.

Explanation:

All of these are displayed in the portion of the geologic time scale shown below. The Phanerozoic Eon represents the time during which the majority of macroscopic organisms — algae, fungi, plants and animals — lived.

the "power" of a lens is its resolution power, or its ability to distinguish between to closely located points. with the low power lens, it is likely you will see the rough form of the hay and maybe some movement of dots around the hay. however, when observed with the high power lens, the detailed features of the hay become visible and the microbes being grown are more clearly visible.

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a covalent bond, specfically triple bond