Answer:
C. Take O-18 samples from glaciers in the Alps.
Explanation: Taking oxygen samples from glaciers located in the Alps would help climatologists figure out the climate because they could study the oxygen they took.
Answer:
C. Peacefully
D. with respect for the law
F. with respect for other people's rights
Explanation:
It will put people with homes situated beside shorelines at risk as cliff collapse can lead to the deterioration of any land located beside the cliff in question which can rapidly progress towards civilization as the erosion effects the lower levels of minerals and other geological things such as soils or rocks & Cliff collapse affects the environment around it because that cliff may have had food essential to certain species. Also, organisms may have habitats on the collapsed area, and now it is lost due to the cliff collapsing. Things in nature have chain reactions, so if one thing is affected, other things will get affected as well (the food chain can be negatively effected)
<span>Will typically increase the amount of erosion in an area</span>
Answer:

Explanation:
Given

See attachment
Required
Find 
To do this, we make use of the following theorem
--- angle at the center and angle between two tangents add up to 180 (i.e. they are supplementary angles)
So, we have:

Collect like terms

