The purpose of preliminary research. 1. It helps you to narrow your topic by finding out how much information is out there and, therefore, what is do-able within the page-limits you have been assigned. 2. It helps you get an idea of which specific aspects of your topic you will want to do more detailed reading about.
Thank you for reporting this comment. Deer love tomato plants. And they can be very bold, they will walk right up next to the house and eat yew or rhododendron foundation plantings, as well as any tomato plants or other goodies they find. You need a high fence or some other deterrent to keep them out.
Pull or cut the leaves from the stalk. The leaves contain oxalic acid, which is poisonous and should not be eaten. Discard of these or add to the compost. Or make a rhubarb spray from the leaves to keep the pests off your broccoli, cabbage and Brussels sprouts.