Ameniscus in a test tube forms when water curves slightly upward at the edge near the glass. this is due to

Volume the volume of the test tube is approximately 35cm so the water is 20m/cw   idk if this helps

A  reaction  in which  energy  is  released  to the surroundings is called an exothermic  reaction. in this type of  reaction  the enthalpy, or stored  chemical energy, is lower for the products than the reactants. when ammonium nitrate is dissolved in water,  energyis  absorbed  and the water cools.

You’ll need a forest engineer bachelors degree