Not enough oxygen
rainforests will turn into desserts like the Sahara dessert which use to be a tropical place.
The body of water that the city of Los Angeles is located on is called the Los Angeles River. It now flows through a concrete channel on a fixed course, since it has been redrawn after many chaotic floods. The river is rarely used however for fresh water for the city, as it is now very polluted and has urban discharge in it's water, so the aqueducts in the city are now used for the fresh water mainly utilized in Los Angeles.
Answer: Options A, B and D.
Explanation: shields are layers of old rocks that metamorphosed as a result of mountain-building events. Shields also have sedimentary layers that usually rest on the lava of the rock.
<span>Basaltic magma which is made of silica compounds is the source of the the lava that flows and is erupted from Volcanoes in the state of Hawaii. The amount of silica in each batch may differ, but it remains true that Hawaiian magma is basaltic.</span>
8 pounds hope this helps!!!