Answer:
7 to 4 (higher 
)
5 to 3
3 to 2
4 to 2 (lower )
Explanation:
We can use the Rydberg formula which relates the wavelength of the photon emissions to the principle quantum numbers involved in the transition:
with 
final n, and 
initial n
evaluating for each transition:
7 to 4 
5 to 3 
4 to 2 
3 to 2 
Note that the above formula is written for 
, so lower value obtained involves higher .
So we should order from lower to higher
7 to 4 (higher )
5 to 3
3 to 2
4 to 2 (lower )
Note: Take into account that longer wavelength involves lower energy (
).
Answer: The greenhouse gases cause Earth's surface to heat up from the sunlight.
Explanation: The greenhouse gases causes the Earth's surface to warm up in the morning and at night, the surface cools down. When it cools down, that gives the heat a chance to get back into the air, but some of the heat is trapped (which is caused by the greenhouse gases). That's why, on average, Earth stays at 58 degrees Fahrenheit.
It's a chemical change beacause elements are combining to make something new! :)
By comparing fossils of different primate species, scientists can study
how different species have diversified over time.<span> Almost all sediment is either laid down horizontally in
bodies of water like the oceans, or on land on the margins of streams and
rivers. Each time a new layer of sediment is deposited it is laid down
horizontally on top of an older layer. With this events, Geologists can
established a set of principles that can be applied to sediments and to
determine how these features evolved through time.</span>
