The answer is kinda obvious, sunlight, soil, and water
Answer:
The total mass of water in on Earth's surface is 
.
Explanation:
Total planetary surface area = T = 
Total land area of planet = L = 
Total water area of planet = W
T = L + W
Volume = Area × Depth
Volume of water on earth = V
V= 
Total mass of total water on the earth = M
Density of the water,D = 1 g/mL = 0.001 kg/0.001 L=1 kg/L
1 g - 0.001 kg
1 mL = 0.001 L
The total mass of water in on Earth's surface is .
River valley trade made them key economic areas.
Hope this helped. :)
Trash pollution like plastic can impact aquatic organisms, they can swallow the plastic which can kill them if not treated right away, other trash pollution like oils can make the aquatic organisms sick. Some pollutants can also affect the mother's milk when it comes time to feed their young, Lots of pollutions can make the animals sick very sick and they can't fight the virus so they ended up dying putting their species at risk of extinction.
Air pollutants can affect the birds, they are breathing in toxic airs from factories and that can kill them too or make them sick.
Pollutions are very bad for aquatic life and wildlife, we have to make sure we keep this planet clean or else we will die out too like the animals
hope this helped :)
Have a great day
