Which of the following is a good soil conservation method to reduce the loss of topsoil on gentle slopes that are farmed?
A) Planting crops parallel to the contours of the slope.
B) Leaving crop residues (i.e., stalks) in place in the field.
C) Planting grass in natural drainageways on the slope.
D) All of these choices are good for soil conservation.
Question 2
Chemical weathering will break down a rock by changing the molecular compounds that make up the rock.
Indicate whether this statement is true or false.
Cougar conservation depends on preservation of their habitat.
good to eat
This exhaust manifold has a heat shield to help retain the heat and help reduce exhaust emissions.
Scientific process and the scientific method
Delta Method Example
Linear programming problems using the simplex method.