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.
Causes of wildfires. According to the USGS wildfires are a natural hazard that occurs when human development comes in close contact with native ecosystems. There is however nothing natural about the devastation caused by the November 2008 wildfires to Southern California.