Please Help! ASAP!

The International Space Station orbits in the .
A. exosphere
B. mesosphere
C. stratosphere
D. thermosphere

How can scientists test their ideas about the origin of the universe if they can't physically interact with or study?

Where can you find prokaryotic and eukaryotic cells?

Onsider the paragraph above. what is one chemical property of water? a) water is a polar molecule. b) water is the universal solvent. c) water reacts with group 1 metals. d) water has a high specific heat capacity.