Answer:
The second option is correct
= Acid can dissolve many metals
Explanation:
Acid reacts with most metals to liberate hydrogen gas, during the process the metals dissolve in the acid
I believe it's (C) Endothermic reaction
Explanation:
When energy is absorbed in an endothermic reaction, the temperature decreases.
Answer:
Explanation:
I can't give the answer...
But i can explain it
So, for the pictograph you could create a number for each symbol that is a multiple of all the results.
Pie chart use the results and divide each by 360 to find the percent for each area.
The rest are fairly simple.
Hope this helps
<u><em>Ponds and rivers are two types of . . . . freshwater ecosystems</em></u>