The envelope of gases surrounding the earth or another planet.
Answer:
When an animal breathes out, water vapor from inside the animal's lungs is released into the air.
Explanation:
The hydrologic cycle is the cycle of water movement throughout the environment. A is the only only one that "recycles" water;
Answer:
Properties describe physical matter.
Explanation:
Answer:
B6Br4
Explanation:
Chemical formula gives a representation of the number of atoms that each element in a compound or molecule. In this question which is asking to give the formula of hexaboron tetrabromide, the hexa means 6 while the tetra means four.
Since the number of atoms of each element is written as a prefix before the main element, this means that the chemical formula of hexaboron tetrabromide will be B6Br4.