whan my dad goes fishing he needs to take a scale to give to the river biologist. they see how old they are. how do – Search I'm a Scientist. Get me Out of Here!

Question: whan my dad goes fishing he needs to take a scale to give to the river biologist. they see how old they are. how do they do this ?

Asked by on 22 Jun 2016.

Question: whan my dad goes fishing he needs to take a scale to give to the river biologist. they see how old they are. how do they do this ?