The picture shows 4 different types of Point Mutations, what type of Point Mutation is letter A? https://encrypted-tbn0.gstatic. com/images?q=tbn:ANd9GcT0qmSOJnauvv dLO-Ad_47qjnDNYP48k-seCQ&usqp=C AU

rising temperatures because when water vapor in the air is cooled, it condenses. it turns back into a liquid and attaches to dust particles in the air. these very small water droplets group together to form clouds

layer 3 is younger than layer 6.

im not intirely sure but i think the anwser is d relative humidity

answer-

the statement that f(x) = |x+a| + b has exactly one x-intercept is sometimes correct.

solution-

it solely depends on b, whether the function will have one or two or zero x intercept.

this plot of the given function, f(x) = |x+a| + b will be the basic absolute value graph i.e v shape, with vertex translated to (-a, b), instead of origin.

1-   if b is zero, the graph will have exactly one x-intercept, at x= -a

2- if b is positive, the whole graph will be above the x-axis, hence it will have no x-intercepts.

3- if b is negative, the graph will be below the x-axis, hence it will have two x-intercepts.

∴ the statement is sometimes true.