Answer:
Outermost
Explanation:
Valence electrons are the electrons in the outermost shell, or energy level, of an atom
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Answer:
The elemental is required in very small amount. (Ans. A)
Explanation:
Trace element is also known as micro-nutrient. It is also defined as any chemical element required by living organisms in a minute or small amounts which is usually part of the vital enzyme (cells produced by catalytic protein).
Exact needs of trace elements vary among species, like commonly required plant trace elements are cooper, zinc, manganese, boron, and molybdenum. Animals commonly required iodine, manganese, and cobalt.
Absence of necessary plant trace elements required by plants in the soil causes deficiency disease, lack of animal trace elements used by animals in the soil may not harm plants, but, animals feeding on those plants develop their deficiency disease.
So, the adjective trace means that the elemental is required in a very small amount.
There would not be enough nutrients in the ground so the grass would possibly die
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The water is able to leave in and out of the cells because there is a cell membrane splits the bilayer of tissue and then the water start leaving and coming back in again from the stage of osmosis.
