Answer:
Make sure to have the right tools for the right job. if you don't it would be probably best to send it to a shop to get fixed.
Natural systems are systems that came into being by natural processes. Like the rain cycle.
Technological systems are those to whom people intervened or designed. Like diverting water for a rider for land irrigation.
Answer: probably 1080p (which is HD)
Explanation: Lcd monitors mainly support 1080p.