10%
10%
The yearly frequency of drought in this scenario is 3 droughts in 30 years, which equates to 1 drought every 10 years on average.
A drought is a severe lack of water over a long time.
The worst drought in Indiana occurred in the 1930s, during the Dust Bowl era. This period was marked by severe dry conditions, crop failures, and economic hardship for many farmers in the state.
The yearly frequency of drought during the 30-year period is 3 droughts in 30 years, which equals one drought every 10 years on average.
The worst drought in Southern Nevada history occurred in 2003.
The environmental challenge in the Grants' study was a severe drought that occurred in 1977 on the Galápagos Islands where they were studying finches. This drought caused a shortage of food, particularly the small seeds that the finches relied on for survival.
The Dust Bowl occurred because of drought. It occurred because of farmers overusing the land and not rotating crops, planting the same things year after year. It occurred because of severe wind storms in the area.
10%
To calculate the yearly frequency of drought as a percentage: Determine the total number of years in the 30-year period. Calculate the number of drought years. Divide the number of drought years by the total number of years, then multiply by 100 to get the percentage.
equatorial