Adecision by the federal environmental protection agency (epa) on the amount of carbon that can be emitted from a car's exhaust system conflicts with a california state law. in this situation, under the supremacy clause: ) both the decision and the law are invalidb) both the decision and the law apply concurrentlyc) california's law takes precedenced) the epa's decision takes precedence.

In this situation, under the supremacy clause: D) The EPA's decision takes precedence.

Explanation:

President Richard Nixon started Environmental Protection Agency (EPA) in United States of America. EPA is an independent agency established in the year of July 9, 1970 for environmental protection. But it came to operation only on December 2, 1970.

There was a great conflict between the federal EPA and California State law regarding the carbon emission amount from the exhaust system of car.

The survey states that the carbon emission in California in the year 2016 was about 429 million metric tons.

hygrometers and hair thermometers (often found as part of hygrometers/psychrometers) can be used to measure humidity. barometers are used to measure atmospheric pressure, while anemometers are used to measure wind speed. so the 2nd and 4th choices should be the correct answers.