1 Vertical-cumulus, cumulonimbus. 2  A cloud that forms on the ground is called fog. 3  Some clouds you see in the sky might be from airplanes. 4  These are called contrails. 5  High level cirrus clouds may travel at speeds up to 100 mph. 6  Even though clouds float in the air, a single cumulus cloud can weigh hundreds of tons.
1 It costs an average of about $47,000 per year to incarcerate an inmate in prison in California. 2  Over two-thirds of these costs are for security and inmate health care. 3  Since 2000-01, the average annual cost has increased by about $19,500.
The average cost of incarceration in the United States is determined by different methods. It costs anywhere between $20,000 and $40,000 per year to house inmates in federal and state correctional facilities; the considerable spread is due to the criteria used by government agencies and prison system watchdogs.he average cost of incarceration in the United States is determined by different methods. It costs anywhere between $20,000 and $40,000 per year to house inmates in federal and state correctional facilities; the considerable spread is due to the criteria used by government agencies and prison system watchdogs.