Answer:
Mesosphere
Explanation:
The mesosphere starts at 31 miles (50 km) and extends to 53 miles (85 km) high. The top of the mesosphere, called the mesopause, is the coldest part of Earth's atmosphere, with temperatures averaging about minus 130 degrees F (minus 90 C).
Answer:
No.
Explanation:
No, writing "are a" in a sentence is not correct because ''are '' is used for plural objects or things such these are boys, footballs are big etc while n the other hand, ''a'' is used for singular objects such as a ball, a boy etc so these two words which are used in separate sentences not in a single sentence with each other. so we can say that we can't write "are a" in a single sentence.
Volcanoes and Mid-Ocean Ridges are kinds of geologic features form at subduction zones.
High levels of dissolved oxygen
<u>Answer:</u>
The astronomers predicted fireworks from the rare stellar encounter in the year 2018. Stellar collision can be defined as when two stars which are in the same group of the stars due to the radiations emitted by the gravity or may be because of some other reason.
The importance of this encounter to the astronomers was that this can describe the huge population of millisecond pulsars and can also be used to develop the exotica of the stars.
