Adjustments to timber management strategies meant to address long-term shortfalls will
a. result in immediate increases in available supplies
b. lead to initial shortfalls in timber supplies
c. initially decrease the cost of timber
d. ultimately result in more expensive timber

Can someone me with questions 12 and 13 plz.

Transportation is the largest single source of air pollution in the united states. air pollution can harm the environment and human health. which technology could offer a solution to this problem? mufflers that reduce noise motors that run on electricity tires that improve gas mileage

Three alkali metals in group 1 are a. calcium, strontium, barium b. boron, aluminum, gallium c. sodium, potassium, rubidium d. fluorine, iodine, chlorine