The current American way of life a. does NOT provide necessary opportunities for its citizens to lead a healthy life
b. meets the minimum standards for most individuals to enjoy good health and quality of life
c has NOT had a significant effect on the leading causes of death over the last century
d. does NOT provide most individuals with sufficient physical activity to maintain good health

( IM IN A HURRY) if u can help

convex lenses are thicker at the middle. rays of light that pass through the lens are brought closer together (they converge). a convex lens is a converging lens. when parallel rays of light pass through a convex lens the refracted rays converge at one point called the principal focus.

a and c

c is 100% but i am confused in a

0.19 m/s and 0.45 m/s

answer;

d. are made mostly of liquid

explanation;

-the general   composition and structure planets includes; they have a thick gas and liquid layer covering a small,solid core. mostly the gases are hydrogen and helium atmosphere and layers of liquid hydrogen. for instance neptune and uranus are examples of the outer planets, they have a core covered by ice and ammonia.

-neptune's atmosphere is hydrogen and helium with a bit of methane so there is no oxygen to breath and the interior is made up of frozen water and ammonia with a rock and iron core. thus, there is no liquid water or solid surface to survive.