After reviewing the graph you posted above, there is one radioactive isotope that has a half life that is approximate to the same as the estimated time of the origin of Earth.
The radioactive isotope is called Uranium 238. You can also write this out as U-238 or uranium/u. Any of these are acceptable for the answer.
La revolución industrial de Alemania se produjo en el siglo XIX, luego del proceso de industrialización que ya venía desarrollando Inglaterra. Esta última facilitó la revolución que Alemania viviría ya que invirtió capitales, maquinaria y debió abastecerse de mano de obra especializada, y se radicó con más fuerzas ya que las regiones de Alemania contaban con variados recursos naturales. Este acontecimiento trajo consecuencias políticas y por supuesto económicas, las que influyeron de forma importante en todos los aspectos.
Espero que ayude
Answer:
Explanation:
Given that:
Area = 475 acres
The length of the channel (L) = 6870 feet
The average water shield slope (S) = 100 feet/mile
Since; 1 mile = 5280 feet
Burst duration D = 15 min
∴
100 feet/mile = 100/5280
The average water shield slope (S) = 5/264
Using hydrograph method:
The time of concentration 
where;
L = 6870
S = 5/264
min
Since 60 min = 1 hour
32.34 min will be (32.34*1)/60
= 0.539 hour
Lag time 
The time to peak i.e
Since D = 15 min is not equal to 
, then we hydrograph apart from duration lag time.
Then;
Now, we need to determine the peak discharge 
by using the formula:
where
484 = peak factor
Recall that A = 475 acres, to miles, we have:
A = 0.7422 mile²
∴
Answer:
b. Tall oak trees
Explanation:
In order for the owner to be able to have energy benefit for the home in a place with hot summers and cold winters, the most practical thing would be to have tall oak trees in front of the large glass windows on the southern side. The reason for this is that the oak trees will be beneficial in both seasons. During the hot summers, the oak trees will provide a lot of shade, thus lowering the temperature on the southern side where the large glass windows are. During the winter, the oak trees will have no leafs on them, meaning that the southern side will be able to get the needed sunlight in this period. We come to a situation where the oak trees will reduce the energy spending for cooling down in the summer, and it will reduce the energy spending for warming up in the winter.
