A the collisions between water particles and polllen grains
Answer:
Laurasia and Gondwanaland
Explanation:
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
A greenhouse gas is one that leads to global warming, by the absorption of infra-red radiation re-emitted by the ground. Common greenhouse gases include carbon dioxide and methane. Surprisingly, water vapour (which contains only oxygen and hydrogen) is also a greenhouse gas and can contribute to global warming.
Most of these look like dilution questions which follow a general pattern;
<span>Use M1V1 = M2V2 (because moles in a solution stays constant if diluted) </span>
<span>so, the Concentration before * Volume before = Concentration after * Volume after </span>
<span>Using the first question as an example; 0.2*50 = 100 * M2 </span>
<span>Rearranging for M2: 0.1 </span>
<span>Therefore the concentration of the final solution is 0.1 M </span>
<span>we know that to work out pH you must use negative logs to base 10; i.e. -log(0.1) gives you the pH for this solution which is 1</span>