How Much Does a Zookeeper Make Per Year? Average Zookeeper Salary. A Zookeeperâs salary typically starts at about $21,000 to $25,000 and ranges up to $39,000 at the high end. The average across the United States is $29,000 and this varies from state to state.
1 Wildfires can be caused by an accumulation of dead matter (leaves, twigs, and trees) that can create enough heat in some instances to spontaneously combust and ignite the surrounding area.  Lightning strikes the earth over 100,000 times a day. 10 to 20% of these lightning strikes can cause fire.
Still, human fire activity is the primary cause of wildfires having nearly ten times the start rate of natural starts (average 10-year percent U.S. starts: 88% human caused; 12% lightning caused). Most of these human fires result from accidental causes.Accidental fires are usually caused by carelessness or inattention by campers, hikers, or others traveling through wild land or by debris and garbage burners.ost of these human fires result from accidental causes. Accidental fires are usually caused by carelessness or inattention by campers, hikers, or others traveling through wild land or by debris and garbage burners.