Human beings contribute to the phosphorus and sulfur cycles by using chemical fertilizers for the soil. This includes mostly synthetic fertilizers that can often be full of various molecules that include phosphorus and sulfur in them.
Answer:
Mucha gente sigue a los demas porque piensan que lo que muchos siguen la mas alta alta probalidad tiene de estar correctos y tambien creen que ellos son bien popular.
Explanation:
Explanation:
Most diving birds have (relatively) long necks and shorts legs, although their necks aren't as long as say herons, storks or egrets. Take the common loon for instance. Their necks can be up to half as long as their bodies but their legs are so short and set so far back that they are very awkward on land.
Answer:
28.57%
Explanation:
Given that:
= 10.0 mg/L
= 3.0 mg/L
We can calculate for the Original maximum deficit can be calculated which can be illustrated as follows:
where;
represents the maximum dissolved oxygen
represents the saturated dissolved oxygen
represents the minimum dissolved oxygen
= 10.0 mg/L - 3.0 mg/L
= 7.0 mg/L
We can also calculate the Desired maximum deficit by using the above expression:
In which ;
= 10.0 mg/L
= 5.0 mg/L
Now that we have all we need to replace the value; we have:
= 10.0 mg/L - 5.0 mg/L
= 5.0 mg/L
Finally, the percentage needed by the BOD for removing the waste can be determined using the following expression;
percentage = %
where;
Desired = 5.0 mg/L
Original = 7.0 mg/L
Then we have;
percentage = %
=71.43%
Required BOD = 100% - 71.43%
Required BOD = 28.57%
Hence, The percentage necessary for the BOD of the plant waste to be reduced to assure a healthy stream with at least 5.0 mg/L DO everywhere = 28.57%
The answer is called Diffusion.