1) Low
2) A lack of natural predators
Not sure whether it’s totally correct, do cross-check.
Answer:
It is difficult to obtain a final conclusion with this information, but it is possible that the sample doesn't contain living organisms whose genetic material is composed of DNA. Another possible reason for this result is that the DNA extraction protocol used in the experiment is not suitable for this sample.
Oceanic crust is denser than continental crust. At a subduction zone, the oceanic crust usually sinks into the mantle beneath lighter continental crust. ... If the same kind of crust collides, such as continent-continent, the plates may crash together without subducting and crumple together like crashing cars.
A.Ozone it's O3 and 100% not nitrogen lol
You usually find penguins in the Antarctica region. <span />