Forest Fires (1)

Forest fires ......... for many different reasons.
occur
flame
range
simmer

Droughts as well as high temperatures and excessive winds ......... forest fires.
seize
repel
throw
cause

Lightning ......... are also responsible for starting forest fires at times.
accents
bolts
bulbs
rakes

Sometimes, humans also start forest fires by being ......... with cigarettes and campfires. They may not completely put out their campfires, and this behavior is dangerous and irresponsible.
smart
careless
greedy
hungry

Some fires are deliberately started by arsonists. Arsonists' ......... may vary, but starting a wild fire is always dangerous and thoughtless.
motives
luck
diets
accidents

Some arsonists may start a fire because they want to file an insurance .......... Others may seek revenge, or the actions might be politically motivated.
rule
permission
claim
command

However, not all forest fires are bad. Some are essential to natural ..........
circles
living
ranches
ecosystems

If natural forest fires are not allowed to take place, forest floors may become overcrowded and new plant ......... doesn't occur.
earth
living
wealth
growth

Some trees actually require fires in order to grow. Their seeds will not ......... without them.
germinate
spring
fall
hibernate

However, fires that are out of control can ......... quickly and devastate large areas in a short time.
compress
range
deploy
spread