It is false that to study Earth’s interior, geologists often rely on indirect methods, such as evidence from fossils. They rely on seismic waves and such.
Explanation:
No, they use seismic waves.A seismic wave is an elastic wave caused by an pressure such as an earthquake or an explosion. Seismic waves may travel either along or near the earth's surface (Rayleigh and Love waves) or by the earth's interior (P and S waves).
Answer:
Which stage represents the establishment of the pioneer organisms?
GRASSES
Explanation:
Grasses which are small plants are pioneer organisms as they grow to reach the climax in an ecosystem
No they do not have defined nucleus
approximately 115 days
Human red blood cells (RBC), after differentiating from erythroblasts in the bone marrow, are released into the blood and survive in the circulation for approximately 115 days.
Oxygen has a negative ion this means when it reacts ionically it gains two electrons in a water molecule they have covalent bonds (shared electrons) this mean the two hydrogenated have shared there electrons with oxygen so (gained two negative electrons) making it negative