Answer:
Here's what I get
Explanation:
John Snow mapped the cholera cases, representing each death as a bar.
His maps showed that many cases were clustered around a public water pump on Broad St. that was close to an old cesspit. The local council eventually disabled the pump by removing its handle.
The diagram below shows his original map overlaid by modern data points. The blue arrow points to the location of the pump.
Answer:
A
Explanation:
Acid deposition would most likely result in the release of aluminum ions from soil
False it's not prussia it is russia
<u>Answer</u>: <em>Option (A)</em>
<em>The metallic bonding is optimal when the distances between the metal and the oxygen are the smallest.</em>
<u>Explanation:</u>
<em>Hardness increases</em> with respect to <em>shorter distances </em>between the metal and the oxygen compounds, the reason for the increase in hardness is due to metallic bonding<em> (electrostatic force between electrons and positive ions) </em>which is optimal between them.
As the <em>distance decreases, hardness increases</em> and for increasing distances hardness decreases. So when the molecular weight is large, it has smaller valence or less charge on the metal which makes the <em>bond weaker and less hard.</em>