A disinfectant spray bottle says it eliminates 90% of bacteria with each application. You apply the disinfectant once to a count
1 answer:
If you eliminate 90% of bacteria with the first application, then 10% of the bacteria will survive.
If you eliminate another 90% of bacteria remaining with the first application, then you will take 90% of 10 and subtract that to find the population remaining after the second application.
Only 1% of the bacteria is left. Therefore, 99% of the bacteria has been eliminated.
If you eliminate another 90% of bacteria remaining with the first application, then you will take 90% of 10 and subtract that to find the population remaining after the second application.
Only 1% of the bacteria is left. Therefore, 99% of the bacteria has been eliminated.
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Answer:
square metres of plant materials required to support the fox = 3650 m²
Explanation:
From the given information:
the daily caloric requirement of the fox = 800
In a year, we have = 800 kcal × 365 /year = 292,000 kcal/year
Also, only 10% of the energy at a particular trophic level can be passed onto the next.
the net productivity of the plant material = 8000 kcal/m²/yr
So, using 10% of energy at a particular level, the fox only need 80 kcal/m²/yr
The objective is to determine in square meters, how many materials are required to support the fox.
square metres of plant materials required to support the fox =
= 3650 m²