The phrases describes what layer of the atmosphere

meteors burn up here
special lighting called sprites
noctilucent clouds form over north and south poles

1. exophere
2. ionosphere
3. mesophere
4. thermosphere

Why should seat belts not be mandatory quick plz

Researchers determine that the biodiversity in a woodland region is declining. they identify two major threats to the region's biodiversity, a method to address each threat, and the expected outcome of each method. this information is shown in the table. a) reforestation would not benefit many species because most forest species live on the ground. b) reforestation would take the longest time to be effective because trees take several years to grow. c) biological augmentation would benefit only a few species because is is typically not very effective. d) biological augmentation would take less time to ve effective because it targets the majority of prey species.

What is the freezing point of radiator fluid that is 50% antifreeze by mass? kf for water is 1.86 ∘c/m.