Answer: a. Heavy rain and thunderstorms followed by lighter stratiform precipitation.
Explanation:
In their order of severity, thunderstorms range from single-cell, multi-cell, squall line, supercell, bow line to Mesoscale Convective systems (MCS)
. An MCS, therefore is a serious weather condition.
A Mesoscale convective system is an organized, group of thunderstorms with a wide geographical coverage and can last for hours. It can come with hail, flash floods, lake effect snow and trigger disasters such as tropical cyclones.
A city is a functional region
Answer:
140 years is average duration of an earthquake.
Explanation:
- The Hayward fault is a geologic fault that is capable of massive destruction and is 119 km long fault western base of hills of San Francisco and is parallel to the San Andreas fault. The occurrence of an earthquake of 6.8 magnitudes in 1868 was biggest earthquake in California history.
- Recently various geologists have taken time interval of the past five large earthquakes and based on the past earthquakes data the interval of 140 years it will take to the formation of a large earthquake.
