If someone takes a breath and the lungs expand from 4.5 L to 5.6 L in volume and the initial pressure inside the lungs is 756 mmHG what is the pressure inside the lungs before any additional air is pulled in

Mary is conducting an experiment on how pollution affects plant growth. how can she ensure that her data are reliable?

Ineed this awnser fast select the correct answer. this chemical equation represents the burning of methane, but the equation is incomplete. what is the missing coefficient in both the reactants and the products? ch4 + → co2 + a. 0 b. 1c. 2d. 3 e. 4

Water is a highly important natural resource. which of these would be the best method to conserve water? a) drinking bottled water b) monitoring the ph of rivers c) treating and re-using wastewater d) testing nitrate levels in groundwater