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.
In California alone, from 1997-2001, an average of 392 wildland fires were caused by arson, burning 21,072 acres and causing over $3.2 million in damage annually. During that period in California, in fires were a cause determination could be made, arson was a more common wildfire cause than lightning.