The most water on earth is held by the oceans .
Answer:milliliters to kilograms
Weight of 1000 milliliters (ml) of pure water at temperature 4 °C = 1 kilogram (kg).
Explanation:
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We can calculate how long the decay by using the half-life equation. It is expressed as:
A = Ao e^-kt
<span>where A is the amount left at t years, Ao is the initial concentration, and k is a constant.
</span><span>From the half-life data, we can calculate for k.
</span>
1/2(Ao) = Ao e^-k(30)
<span>k = 0.023
</span>
0.04Ao = Ao e^0.023(t)
<span>t = 140 sec</span>
