Ecologist study population by mark and recaptur tagged and released.
they conduct tests, observing in natural environments, and they use tools and method to observe
One way is what is called a "Mark-Recapture" a study on how large the population is.Please see related link below!
ecologist
Science
study.
some of the ways geologists study rocks in the field are they look for ''outcrop areas'', or ''outcrops'', which are outside places where much rock, mineral, crystal or gem is exposed.
take some flashcards that you make for your test and then study 3 at a time make a game show out of your test.and when your done
competition
hana tana.
you can find new ways to study, such as funner ways
A sample needs to be random and if not a simple random sample of the whole population then a stratified random sample (there are different ways to stratify). Otherwise the study is a waste of time.
If someone wishes to study the effects of immigration and naturalization they can do this in a variety of ways. Some of these ways are; reading articles, reading information in books or even watching documentaries.