How are the executive departments and the executive office of the president (eop) different? (apex)

C. the heads of executive departments need to be approved by Congress, while the heads of the EOP do not.

The correct answer is:

The heads of executive departments need to be approved by Congress, while the heads of the EOP do not.

The heads of the 15 executive departments are designated by the President with confirmation of the United States Senate. On the other hand,  most of the 4,000 positions in the Executive Office of the President, created in 1939 by President Franklin D. Roosevelt, do not require confirmation from Congress.  

question - in 1827, john walker, a druggist in a small english town, tipped a splint with sulphur, chlorate of potash, and sulphid of antimony, and rubbed it on sandpaper, and it burst into flame. the druggist had discovered the first friction-chemical match, the kind we use to-day. it is called friction-chemical because it is made by mixing certain chemicals together and rubbing them. although walker's match did not require the bottle of acid, nevertheless it was not a good one. it could be lighted only by hard rubbing, and it sputtered and threw fire in all directions. in a few years, however, phosphorus was substituted on the tip for antimony, and the change worked wonders. the match could now be lighted with very little rubbing, and it was no longer necessary to have sandpaper upon which to rub it. it would ignite when rubbed on any dry surface, and there was no longer any sputtering. this was the phosphorus match, the match with which we are so familiar. according the paragraph what was the benefit of the new phosphorus match? it burst into flame when rubbed on sandpaper. it was made by mixing chemicals. it could be ignited on any dry surface. it threw fire in all directions.

answer - matches required natural chemicals