The gas that usually causes explosions in coal mines is
1 Hydrogen
2 Carbon monoxide
3 Air
4 Methane
Answer Posted / shailesh ginoya
4. methane
| Is This Answer Correct ? | 5 Yes | 1 No |
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When a person sends a message to someone with the Internet, there are steps that happen to the recipient to receive the message. How does the recipient know that the message was not edited by someone else?
171.116.0.0 VLSM require 112 ip addresses answer = 128/23 255.255.254.0 rang 2 network address 172.116.0.0 gateway 172.116.1.0 broadcast 172.116.127.0
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