I need help with some enviromental questions???

Question

how do you use a rain gauge?

how would you test soil permeability?

and how to you get the elevation of an area?

Answer 1

Rain gauge collects water and has graduated markings to show amount of rain collected. Usually calculated over a 24 hour period.

Soil permeability is measured by putting a sample in an open cylinder, adding water to the top and measuring the time for a specific amount of water to filter through to the bottom.

Elevation can be measured using a GPS (satellite navigation) or traditional survey equipment (theodolite)

It can also be read off a topographic contour map if you know the location.