I'm not sure what the choices are, but here are some answers that are true about ecosystems:
An ecosystem is a large community of living organisms
Each ecosystem has its own community.
Once defined, an ecosystem is a unit scientists can analyze
The living parts (plants, animals and microbes) of an ecosystem are the biotic components.
The greater the inputs, the greater the biodiversity in an ecosystem.
Ecosystems are dynamic and a greater input leads to a greater biodiversity.
Deflation is the process of erosion of dirt, rock, sand, or other sedimentary materials by the force of wind. When the wind blows through an area it creates deflation of the earths surface by moving particulate matter from one area to another.
They morphed into cartels and monopolizes. Corporations began to emerge around this time.
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 .
Similar fossils were found on different continents.
