Answer:
reflection
Explanation:
the moon reflects sunlight causing it to look brighter. the sun is not a medium as light doesn't require a. medium to travel. nor is a moon concave...
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Answer:

Explanation:
Hello!
In this case, since the Dalton's law help us to realize that the total pressure of a gas mixture is computed by adding the partial pressure of each composing gas, for the mixture formed by carbon dioxide, oxygen sulfide (should be hydrogen sulfide instead) and air, we can write:

Thus, given the total pressure and the partial pressures of both carbon dioxide and hydrogen sulfide, the partial pressure of the remaining air would be:

Therefore, we plug in to obtain:

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Explanation:
Relative age is a process of ascribing age based on some events. It is an inexact method of assigning age in that, we do not know for sure the real age.
- Absolute age gives the exact numerical age of an event.
- A landmark event is used in assigning relative age
- It can be an extinction event, ice age, intense volcanism e.t.c
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Divide 180kg and 90m3 and your density will be 2kg/m3