Answer: composted cow manure
Explanation:
A cow manure consists of high levels of ammonia, pathogens which can harm the plants thus cannot be used as fertilizer. The composted cow manure is a processed fertilizer which is prepared by eliminating the ammonia gas and pathogens. It is prepared by adding up the additional organic matter.
It is an excellent growing medium for the agricultural crops and garden plants as it is a nutrient rich fertilizer. It is mixed into the soil or can be used for top dressing of the agricultural field. It is a kind of organic manure.
It is accurate to say that site engineering does not require particular consideration for soils with low percolation rates.
<h3>What are percolation rates?</h3>
- The rate at which water percolates through the soil is a measure of its ability to absorb and treat effluent, or wastewater that has undergone preliminary treatment in a septic tank.
- Minutes per inch are used to measure percolation rate (mpi).
- The process of a liquid gently moving through a filter is called percolation. This is how coffee is typically brewed.
- The Latin verb percolare, which meaning "to strain through," is the source of the word "percolation." When liquid is strained through a filter, such as when making coffee, percolation occurs.
To learn more about percolation rates, refer to:
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Answer:
0.1 nm
Explanation
Potential deference of the electron is given as V =150 V
Mass of electron 
Let the velocity of electron = v
Charge on the electron 
plank's constant h =
According to energy conservation 

Now we know that De Broglie wavelength 
Answer:
a)
, b)
, c)
, d) 
Explanation:
a) The area of the solar panel is:


The energy potential is determined herein:


The efficiency of the solar panel is:



b) The energy generated by the solar panel is presented below:


c) The energy generated per month and per panel is:



Monthly energy savings due to the use of 18 panels are:



d) The payback of the solar energy system is:


Answer:
Explanation:
The explanation is given in the picture that is shown below