When one element changes into another, the process is called and the number of
changes.
A. radioactive decay, protons
B. transmutation, neutrons
C. radioactive decay, neutrons
D. transmutation, protons

i'm only doing this for the points : (

explanation:

i'm only doing this the points

weight of the box is given as

here this is placed on the inclined of angle 42 degree

now this weight will have two components one is along the incline other is perpendicular to it

so here we need to apply a force parallel to incline opposite to its component of weight

so here the component of weight is given as

here we have

so it requires 75 n force to move it upwards

a 2,000 calorie based diet.

metals only

metalloids only

nonmetals only

metal and metalloids

metalloids and nonmetals