Answer:
True
Explanation:
A semicircular or circular torch movement should be used when depositing weld beads.
Answer:
A motion sensor uses one or multiple technologies to detect movement in an area. When a sensor detects motion, it sends a signal to your security systems control panel, which connects to your monitoring panel system. This alerts you and the monitoring center to a potential threat in your home.
Hope It Helps You................
Answer:
Both come from the sun
Both are reusable sources
and both don't cause pollution
Explanation:
Answer=
low-frequency EMFs pose little danger to human health. ... Exposure to large levels of high-frequency EMFs is known to damage human DNA and cells
Explanation: