1. Considering how it is transmitted, which would be the MOST effective preventive measure against Lyme disease among a stable of racehorses?
Spraying down the stables regularly with an insecticide designed for
ticks.
Wrapping all horses in special blankets to protect them from biting
flies.
Regularly replacing the hay in the stalls to get rid of ladybugs.
Plugging in sonic deterrent devices to scare away bats at night.

sodium (na), for example, has one electron in its valence shell. this is an unstable state because that valence shell needs eight electrons to be full. in order to fill its valence shell, find a way to add seven electrons to its valence shell

a rain shadow is a dry region of land on the side that is protected against the prevailing winds of a mountain range. the prevailing winds are the winds that occur most of the time in a particular place of the earth

prevailing winds carry air toward the mountain range. as the air rises up over a mountain range, the air cools, water vapor condenses, and clouds form. on this side of the mountains, called the windward side, precipitation falls in the form of  rain  or snow. this dry air produces a  rain shadow.