Set this up as
10 = 40 (1/2)t/28
and solve for t in years.
10/40 = (1/2)t/28
log(0.25) = (t/28) log(0.5)
t = 28 log(0.25) / log(0.5) years = 56 years
Test the answer:
56 years = 2(28 years) = 2 half-lives, so the remaining amount should be 1/2 of 1/2 of the initial amount, i.e. 1/4 of the initial amount, and 10 mg = 1/4 of 40 mg.
Weather is the temperature and love you feel and the action Mother Earth gives us each day and night...receive it well...
If you want a more complex, scientific, and bs explanation/answer:
-Weather is the stages or states Earth's atmosphere gives in regards to the changes in wind, cloud, and sun patterns and can be effected by other factors including global warming. It is experienced in a variety of ways throughout the world depending on the area.
I hope this helps, if it doesn't, I'm sorry
We should grow many trees.If we don't the world will warm in the next 20-80 years.
Answer:
2 biotic factors that compete for a abiotic factor in a forest are a wolf and a deer competing for water.
Explanation:
