Major earthquakes are often followed by somewhat smaller events known as .

Answertaurus is the highest in the sky;

An oceanic-oceanic convergent boundarycredit to user

The oldest is  found in the  west pacific and north-west atlantic. 

Genetically modified corn is a very controversial issue because of the potential benefits that it can bring, but also the potential for it to bring problems in the future. genetically modified corn can be beneficial in the developing world because it can be modified to be resistant to drought, or pesticide, and therefore the crop is stronger and easier to grow. however, the use of gmo corn can also be problematic because they decrease the diversity in the types of seeds that are used to grow food and also can make farmers dependent on the seeds from companies because they can only be used once to grow corn.