Answer:
selective breeding
Explanation:
Example: pretend that rabbits can only be brown or black and black is dominant. If only the brown rabbits reproduce it will eventually be more common Hope this helps
Answer:
4 hours and 30 minutes
Explanation: because first wave was 1:30:00 and the second is 1:34:30
1:30:00 goes into 1:34:30 4 hours and 30 minutes.
Answer:
To find the noble gas notation, you first take the noble gas before the element you’re trying to find the notation for. In this case, the noble gas before Calcium is Argon. You put the symbol for Argon in square brackets, and then you write out the rest of the notation as you would normally.
This would look like [Ar]4s^2
The 4s^2 is because Calcium is the second element in the 4s columns (refer to the diagram)
Hope this helps :)
Answer:
P2 = 0.935 atm
Explanation:
initial conditions:
∴ V1 = 3.41 L
∴ T1 = - 91.5 °C + 273 = 181.5 K
∴ P1 = 3990 torr * ( atm / 760 torr ) = 5.25 atm
∴ R = 0.082 atm.L / K.mol
⇒ n = P1V1 / RT1 = ((5.25 atm)*(3.41 L)) / ((0.082 atm.L/K.mol)*(181.5 K))
⇒ n = 1.107 mol
final conditions:
∴ V2 = 3.3 L
∴ T2 = - 239 °C = 34 K
∴ n = 1.107 mol
⇒ P2 = nRT2 / V2
⇒ P2 = ((1.107 mol)*(0.082 atm.L/K.mol)*(34 K)) / 3.3 L
⇒ P2 = 0.935 atm
Answer:
It's A
Explanation:
Animals get the nitrogen they need by eating plants or other animals that contain nitrogen. When organisms die, their bodies decompose bringing the nitrogen into soil on land or into ocean water. Bacteria alter the nitrogen into a form that plants are able to use.
