Environmental Science Chapter 20 &21 Quiz

Is this your test? Login to manage it. If not, you can make a test just like it.

1.
1 point
An example of cross species transfer is
2.
1 point
Governments often try to influence economics
3.
1 point
Pathogens cause infectious diseases
4.
1 point
_________is the condition in which human needs are met in such a way that a human population can survive indefinitely
5.
1 point
Toxicology is the study of the harmful effects of substances on organisms
6.
1 point
The study of the spread of diseases
7.
1 point
Mosquitoes are an example of a host
8.
1 point
What contributes to the spread of TB
9.
1 point
Toxic chemicals can be carried from city to city by waste water
10.
1 point
Apx. __________ people live on the Earth right now