It's 4. just took it, that's 1000% the right answer. that other person stinks for that non-answer, sorry. hope this helps.
ps. if it's not obvious, you figure it out by taking the hypotenuse (120) and putting it over the height (30). 120/30 is pretty simple division.
When electrons are added to the outermost shell of a carbon atom, it forms an anion that has a larger radius. An anion always has a larger radius than a neutral atom of the same element. This is because more electrons cause greater repulsion between its nucleus and electrons, making the electrons move farther away from the center.
A forester's main responsibilities are to develop plans for growth and sustainability, assess the viability of timber in an area, assess an area for possible issues, and monitor the health of timber in an area.
The Hardy – Weinberg principle
has seven conditions that should occur in the evolution of the population. One
is when mutation does not happen. Two, is when natural selection is not
occurring. Three, if the population is infinitely large. Four, if all the
members of the population produce offspring.
Five, sexual intercourse is random. Six, the population will produce the
same number of offspring. And lastly, the population does not migrate from one
place into the other. The thing that would disrupt the genetic equilibrium is
the mutation.
Index fossils (also known as guide
fossils, indicator fossils or zone
fossils) are fossils used to define
and identify geologic periods (or
faunal stages).