Please help me! I am in the middle of a test! A scientist is observing surface groundwater features to determine sources of groundwater.
Which is one surface feature that the scientist can observe and map?

spring
saturated zone
aquifer
water table

I belive the answer is spring

Explanation: Due to the facct that he can see it so he  can map that

A. Spring

Explanation:

I took the test.  

in situ hybridization has been widely used for research applications, including clinical cytogenetics, gene mapping, tumor biology and studies of chromosome evolution.

transformative rocks are the stones that emerge from the transformation of existing rock composes in a procedure called changeability, implies changing of structures. transformative rocks are shaped from alternate shakes that are changing a result of warmth or weight connected. one of this model is the earth developments that making rocks profoundly cover or crushed which will make the stones warmed and put under awesome weight. they are not softening but rather the minerals they are containing are changed synthetically that will shape transformative rocks. now and again different rocks are shaped when the others are near some liquid magma and getting warmed.