1
surrounding or habitat
2
being the cause of or the reason for something
3
an event of scientific interest
4
tracking or following
5
to get into or do things in a situation where you are not wanted or needed
6
containing poison that is dangerous
7
to grow in number rapidly
8
to be likely to harm or destroy something
9
to give off or let go of something
10
able to do something
11
weather conditions
12
originally from an area
13
to move into a place and cause harm
14
a way of doing something
15
to change in some way
