Natural selection also means survival of the fittest. This is where organisms who are better adapted to their environment survive and produce more offspring compared to the ones who aren’t as adapted to their environment.
Answer: False
Explanation: Cuz its False, and its false, this message was approved by False.
Mine tailings be stored and disposed of carefully since they
contain a lot of chemicals that are very toxic that leaches into aquifers, and
they also runoff in the rainwater into streams and lakes.
Tailings, also
called mine <span>dumps, culm dumps, slimes, tails, refuse,
leach residue or slickens, are the materials left over after the process of
separating the valuable fraction from the uneconomic fraction (gangue) of an
ore.</span>
Answer:
the final temperature = 74.33°C
Explanation:
Using the expression Q = mcΔT for the heat transfer and the change in temperature .
Here ;
Q = heat transfer
m = mass of substance
c = specific heat
ΔT = the change in temperature
The heat Q required to change the phase of a sample mass m is:
Q = m
where;
is the latent heat of vaporization.
From the question ;
Let M represent the mass of the coffee that remains after evaporation is:
ΔT = 
where;
m = 2.50 g
M = (240 - 2.50) g = 237.5 g
= 539 kcal/kg
c = 1.00kcal/kg. °C
ΔT = 
ΔT = 5.67°C
The final temperature of the coffee is:
ΔT
where ;
= initial temperature = 80 °C
= (80 - 5.67)°C
= 74.33°C
Thus; the final temperature = 74.33°C
