In 1916, congress approved legislation for the creation of the national park service, a power expressly given in which clause?
a. establish post offices and post roads
b. the necessary and proper clause
c. regulate interstate commerce
d. govern the federal capital and federal areas

govern the federal capital and federal areas

Explanation:

The clause granted the Feds with the power to Prevent a 'derogation of values' from a certain area.

This is related to the creation of creation of the National Park Service (NPS) Because the BPS is established to  conserve the scenery and the natural and historic objects on all government owned land

This basically prevent individuals and corporations from exploitation the resources in NPS territory without the permission from the government.  (hence protecting them from the derogation of value).

answer; /// the answer to the first question is (b) it began when people first deliberately seeds; /// and (d); // it gave people a steady food supple for the first time;

hello,

answer: a federal government has final authority on interstate/inter provincial  and international affairs, a confederation is one where the central/national government or authority is governing body what does not have final say over the same matters. hopefully this and i will try again if you don't like this answer : )

best of luck!