Answer:
The difference is that a floppy relies on a floppy disk reader to spin its disk, where as a hard drive is a fully enclosed container that has it's reader enclosed as well. A floppy disk is a single plastic film disk, where as a hard disk can have multiple metal disks.
Explanation:
<span>TRUNK. In a dendritic system, there are many smaller rivers or streams (the "twigs" of the tree), which are then merged into the tributaries of the main river (the branches and the trunk of the tree, respectively). They tend to develop in V-shaped valleys</span>
There is something wrong with your photo you should try and re-post it again
C is the answer I think not sure