1. What are the two main factors that affect deep ocean currents? 2. True or False? The patterns of ocean currents affect how fish and other sea life move around the ocean or control how ships travel through water.

3. What is a gyre?

4. What are possible health risks to humans due to plastic trash ending up in the ocean?

the cost of mining is extremely low compared to the money earned from mining, creating income to improve the environment.

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.