Will mark brainliest :) is a way to protect a system from hackers. A. Installing a botnet
B. Making "Deny" the default
C. Using packet sniffers
D. Installing a troll on the server

Google 'climate change' and it will bring up tons of info and websites. its up to you which website you choose.

There is a paper clip on the bottom left side below the question box 

If you’re thinking about a career as an applied mathematician, you should consider researching the (stem) cluster. within this cluster, you’ll find that most of the careers require(a college degree) in order to have the knowledge and skills needed to excel in these positions.