I would take the advancement of the refrigeration as a crucial part in the increasing of the production.
The refrigeration has been extremely important in the agriculture and the amount of production in it, because with it the agricultural products can be kept fresh for much longer periods. Because the products can be kept fresh for much longer time, that means that they can be delivered to pretty much every part of the world and not be spoiled. So the refrigeration opened up the doors for the farmers in the sense that instead producing only for the region or the country they live in, they can now produce much more for exporting, as the products will not spoil and remain fresh. That has also brought in much bigger profit for the farmers, and the production is constantly increasing because the whole market in the world is open with this technological advancement.
Sedimentary rock can change into metamorphic<span> rock or into </span>igneous<span> rock.</span>Metamorphic<span> rock can change into </span>igneous<span> or sedimentary rock. </span>Igneous rock forms when magma cools and makes crystals. Magma is a hot liquid made of melted<span> magma.</span>
Unfortunately I do not understand what you are needing. It looks to me that you need to look up several facts and then create a presentation on law, public safety, and security careers. And the best place to look that info up on is online. Sorry if this isn't what you need but i do hope that this helps!