Scientists have tried lots of different ways of predicting earthquakes, but none have been successful. They<span> haven't been able to find a signal for earthquakes( there is no obvious sign to say that an earthquake is coming very soon).</span> They do have a pretty good idea of where an earthquake is most likely to hit, but they still can't predict exactly when it will happen.
However, the probability of a future earthquake can be calculated, based on scientific data. Scientists estimate that the probability of a major earthquake occurring in the San Francisco Bay area over the next 30 years is 67%.
Im going with Genes inserted from other organisms.
The sheer force of water hitting the banks<span> and bed of a </span>river causing<span> material to be dislodged and carried away ... An</span>overhanging cliff<span> that is found </span>on<span> the outer bend of a meander that is created due to lateral erosion of the </span>bank river<span>.</span>
The cell wall doesnt let everything in the cell membrane lets some things in the wall is tp protect the cell