The environmental protection agency is in charge of all of the following except

the clean air act

the marine protection, research, and sanctuaries act

the wild free-roaming horses and burros act

endangered species act

The Environmental Protection Agency is in charge of the Clean Air Act; the Marine Protection, Research, and Sanctuaries Act; and the Endangered Species Act; but not of the Wild Free-Roaming Horses and Burros Act.

Explanation:

The Wild Free-Roaming Horses and Burros Act of 1971 is a federal law of the United States, under which wild horses and donkeys in this territory are protected from slaughter and displacement, and managed by the Bureau of Land Management.

the median of the data is 4.5.

the correct answer is 4) heat and pressure

metamorphic rocks arise from transformation of existing rocks types, in a process called metamorphism. during metamorphism the original rock(prolith) change into metamorphic rock by heating (150-200c) and pressure of more than 1000 bar. the original rock can be sedimentary, igneous, or existing metamorphic rock.