Recommend and explain the action to be taken to try to restore the lake to its original condition, based on scientific reasoning and include one real world example(write the
reference for your example) that used a similar method / approach to solve the same
problem

25) a student takes four samples of a white crystalline solid and places each in a well plate. on top of each sample, she carefully places 20 drops of clear mystery liquids a, b, c and d. her results for each well are: liquid a: the solid dissolves quickly. liquid b: the solid appears unchanged. liquid c: a brownish colored liquid is produced. liquid d: fizzing occurs and the well becomes warmer. in which well does a physical change occur?

Acommon kind of mechanical weathering is called

What is the primary function of the nervous system?