The answer is A. Organisms compete for limited resources. A is wrong because it has nothing to do with reproduction which is natural selection.
The two most important properties of a telescope are: Light gathering ability<span> - The better a telescope can gather light, the better you will be able to see far away stars and faint objects in the night sky. Magnification - The magnification of a telescope describes how much larger the telescope can make objects appear.</span>
I think that the correct order of impacts would be first a, then z, then b because the radial cracks at a were cut off by the cracks at z and the cracks at z are cut off by the cracks at b so in other words I think that when radial cracks are cut off by another series of cracks, the other series of cracks postdates the first set of cracks (impact)
