Which of the following sources of pollution decrease the oxygen level of water? select the two correct answers.
animal manure

toxic metals

gasoline

plant fertilizer

radioactive substances

Plant fertilizer and animal manure are the following sources of pollution decrease the oxygen level of water.

Explanation:

These sources of pollutants incorporate sullying because of residential squanders, bug sprays and herbicides, nourishment handling waste, toxins from animal tasks, unpredictable natural mixes (VOCs), overwhelming metals, compound waste, and others.

It is regularly a worry as an outcome of contamination and eutrophication in which plant supplements enter a waterway, lake, or sea, and phytoplankton blossoms are energized. Additionally, amazingly high alkali levels in spillover from compost can slaughter fish.

the electronic configuration of an atom with eight electrons is 1s²2s²2p⁴. the orbital diagrams are shown in the figure.

as per the hunds rule:

1. electrons tend to avoid being in the same orbital as per as practicable.

2. electrons in different orbitals of the same energy will have their spin parallel.

this can be illustrated from the multiplicity of the orbitals of the atom. as there are four electrons in the p orbital and p orbital has 3 sub-shells. the electrons can be fed in different ways as shown in the figure but the correct orbital diagram will be as per the hunds rule.