Answer:
A mixture is made up of more than one element while a pure substance is made up of one type of atom.
Explanation:
Decomposers recycle nutrients from dead plant or animal matter back to the soil in terrestrial environments or to the water in aquatic environments. The atoms that make up the organisms in an ecosystem are cycled repeatedly between the living and nonliving parts of the ecosystem.
The correct answer is a nutrient runoff.
Nutrient runoff is a major reason for eutrophication of surface waters, in which extra amount of nutrients, generally phosphorus or nitrogen, instigate growth of algae. Sources of nutrient pollution involve surface runoff from pastures and farm fields, emissions from combustion, and discharges from septic tanks.
Answer:
A rotting log is nonliving. However, it can have mold, lichen, or fungus growing on it, which is not the log itself. Those three things are living. And though the log was once a living tree, at it's current state, it is nonliving.
I hope this was helpful!
decreases
Explanation:
According to the general trend, metallic character decrease in proceeding up a group of elements in the periodic table.
Metallic character increases down a group and decreases across the period.
- Metallicity or electropositivity is a measure of the tendency of atoms of an element to lose electrons.
- It is related to electronegativity and ionization energy.
- The lower the ionization of energy of an element, the more electropositive it is
- Across a period, electropositivity decreases.
- It increases down a group on the periodic table.
learn more:
Electronegativity brainly.com/question/11932624
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