The Category 7 cable standard has been created to allow 10 Gigabit Ethernet over 100 m of copper cabling (also, 10 Gbit/s Ethernet now is typically run on Cat 6 A). The cable contains four twisted copper wire pairs, just like the earlier standards.he Category 7 cable standard has been created to allow 10 Gigabit Ethernet over 100 m of copper cabling (also, 10 Gbit/s Ethernet now is typically run on Cat 6 A). The cable contains four twisted copper wire pairs, just like the earlier standards.
Flooding occurs in a number of ways, and each may be affected by climate change. Surface water flooding occurs where heavy rainfall canât absorb into the ground or drain away. River flooding, closely linked to surface flooding, occurs when streams burst their banks.
One cause of floods can be forecast months in advance--snow. Sometimes the ground is too hard or too wet to soak up water. The only place the rain can go is downstream. Usually rainfall of more than one inch in one hour is needed to cause a flash flood. Sometimes a place can get hit by a flash flood even if it's sunny because it might be raining on higher ground somewhere. The floods in Poland this summer weren't flash floods. They were caused by heavy rainfall but the rain was spread out over days. So much rain fell that the rivers couldn't handle all the water.