As stars get older they get cooler and you know when you light a flame the part at the bottom is hotter so its also applies to stars, the star is very hot because it is newer and has more gas so it appears blue to us
Friction and Tectonic
Chemical Weathering
Physical Weathering
Wind and Water Erosion
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http://classroom.synonym.com/natural-activities-work-break-down-rock-16920.html
I know that we aren't suppose to paste websites but I believe that this information is necessary, I hope this helped, sorry!</span>
<span>The correct answer to this question is B - the two key questions in geography are intended to obtain certain factual information. Whilst the other possible questions given as answers for this question, such as 'why are they going' give indefinite, opinion-based answers, only answer B. Which birds are migrating would give a definite answer.</span>
Answer:
Maybe they could you know, just not thow trash in the river?
Explanation:
They could also use energy more efficiently, they could instal renewables which are like solar and wind, they could use energy that is clos to wherever they are instead of using one thats way far away
I'm not really sure but if this helps great, if it doesn't I'm sorry
Answer:
, 
Explanation:
The total water level lost due to evaporation is directly proportional to the number of day. That is:
Where 
is the proportionality constant, which is equal to 
. The expression is:
And the total change in water level after 30 days is:
