1 = strongly agree 2 = undecided 3 = strongly disagree a. Plastic goods are essential in our modern world:
b. Plastics do not harm the environment if we recycle them:
c. We need to invent more biodegradable plastics:
d. Plastic products are better than products made of glass, metal or paper because plastic costs less:
e. Chemicals fertilizers and pesticides endanger young children and animals:
f. Chemicals do not harm the soil, even if they are harmful to pests:

On a cold day, when the air temperature is 0°c, you empty your lungs and take a deep breath, filling your lungs with 4.2 l of air. if you hold your breath until the temperature of the air in your lungs reaches 37°c, what is the volume of the air in your lungs at that point, assuming the pressure does not change?

If an atom contains 11 protons in its nucleus, predict the element with the atomic number and electronic configuration. will the number of electrons remain the same during the chemical reaction in such an atom? explain.

Aperson gives a shopping cart an initial push along a horizontal floor to get it moving, and then lets go. the cart travels forward along the floor, gradually slowing as it moves. consider the horizontal force(s) on the cart while it is moving forward and slowing. which of the following statements is correct? (a) both a forward and a backward force are acting on the cart, but the forward force is larger. (b) only a forward force is acting which diminishes with time. (c) both a forward and a backward force are acting on the cart, but the backward force is larger. (d) only a backward force is acting, no forward force.