How was the Clean Air Act of 1970 different from previous legislation aimed at reducing pollution?

A. It put regulation in the hands of the federal government.

B. It was the first law struck down by the EPA.

C. It was the first environmental protection law passed.

D. It put regulation in the hands of state and local governments.

Suggest why placing wheels under a heavy box reduces the neccessary force required to push it along at a constant speed.

Hydrilla (hydrilla verticillata) is an invasive aquatic plant and one of the most serious aquatic pests in florida. hydrilla has already been introduced to hundreds of bodies of water throughout florida, hydrilla is difficult to control because it grows rapidly and survives in many different water depths and conditions. hydrilla • describe how hydrilla affects native plant and animal species. include both a biotic and an abiotic limiting factor. • suggest one biotic and one abiotic recommendation that could slow the spread of hydrilla

The table above shows five different types of chromosomal abnormalities that can occur during meiosis. they result in either an individual having too many or too few chromosomes in their genome. what is the most likely cause of these chromosomal abnormalities?