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maw [93]
2 years ago
6

Why are some minerals, such as copper, only needed in small amounts in your diet?

Biology
1 answer:
galina1969 [7]2 years ago
7 0

Answer:

D

Explanation:

<em>They</em><em> </em><em>are</em><em> </em><em>not</em><em> </em><em>used</em><em> </em><em>by</em><em> </em><em>the</em><em> </em><em>bod</em><em>y</em><em> </em><em>on</em><em> </em><em>daily</em><em> </em><em>basis</em><em> </em><em> </em><em>bec</em><em>ause</em><em> </em><em>they</em><em> </em><em>ha</em><em>ve</em><em> </em><em>less</em><em> </em><em>nutrie</em><em>nts</em>

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Copper is used in a household wiring because?
a_sh-v [17]
Because it is malleable and doesn't melt/burn easily.

8 0
3 years ago
Ancient photosynthetic prokaryotes were very important in the history of life because theya. produced the oxygen in the atmosphe
OLga [1]

Answer:

a) produced the oxygen in the atmosphere

Explanation:

  • Prokaryotes are likely to first form of life on earth and they existed billions of years ago before animals and plants.
  • As these prokaryotes can do photosynthesis so there most important function is produce oxygen in atmosphere for the evolution of aerobic life.
  • At that time the conditions were harsh on earth so these prokaryotes are used to survive under earth like in oceans. They first produce oxygen in oceans.
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7 0
3 years ago
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Which of the following are characteristics of ultramafic igneous rocks
topjm [15]
Lowest silicon content
7 0
3 years ago
How can I use MIE scattering to determine the best particle size to light scattering with glasses?
Gwar [14]

Answer:

There is a simple algebraic formula relating turbidity to optical properties. You do not need Mie theory. It is given in van de Hulst "Light scattering from small particles" (a nice cheap reprint from Dover Press). More easily accessible are any of the Mie calculators avaiable on the Internet, say Miecalc, these will give the exact result.

7 0
2 years ago
MAIN IDEA: Life depends on hydrogen bonds in water. Choose whether the statement is true or false. 1. true / false Polar molecul
sukhopar [10]

Answer:

1. False

2. True

3.True

Explanation:1. Polar molecules have two regions but the regions are with a partial +tive charge and a partial -tive charge

2. Water is a polar molecule because of the partial +tive and partial -tive charge hence it dissolves polar solute(solute with ions)

3.The more electronegative region bonds with an electrophile to form a weak bond(Hydrogen bond)

5 0
3 years ago
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