Nepa (genus)

Nepa is a genus belonging to the family Nepidae, known as water scorpions.

They are oval-bodied, aquatic insects with raptorial front legs. Like other members of the Nepidae, they have a pair of nonretractable cerci-like breathing tubes on the terminal abdominal segment, a characteristic which readily distinguishes them from the Belostomatidae. Their primary staples are other insects and small aquatic vertebrates. They can inflict a painful bite when handled.

Etymology

'Nepa' is a classical Latin word for a 'scorpion' or 'crab'.

Species

A partial list of species includes:

N. apiculata is the only species found in United States and is widely distributed, while N. cinerea is found in Europe.

Linnaeus lists a number of species in his initial description of the genus, many of which, if not all, have been moved to other genera.

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Nepa

Nepa is a village and market center Dullu Municipality in Dailekh District in the Bheri Zone of western-central Nepal. The formerly village development committee was annexed to the municipality from 18 May 2014. At the time of the 1991 Nepal census it had a population of 3621 people living in 739 individual households.

References

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List of craters on Mars: H-N

This is a list of craters on Mars. There are hundreds of thousands of impact crater on Mars, but only some of them have names. This list here only contains named Martian craters starting with the letter H – N (see also lists for A – G and O – Z).

Large Martian craters (greater than 60 km in diameter) are named after famous scientists and science fiction authors; smaller ones (less than 60 km in diameter) get their names from towns on Earth. Craters cannot be named for living people, and small crater names are not intended to be commemorative - that is, a small crater isn't actually named after a specific town on Earth, but rather its name comes at random from a pool of terrestrial place names, with some exceptions made for craters near landing sites. Latitude and longitude are given as planetographic coordinates with west longitude.

H

I

J

K

L

M

N

See also

References

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National Environmental Policy Act

The National Environmental Policy Act (NEPA) is a United States environmental law that promotes the enhancement of the environment and established the President's Council on Environmental Quality (CEQ). The law was enacted on January 1, 1970. As the bill was an early step towards the development of the United States's environmental policy, NEPA is referred to as the “environmental Magna Carta”.

NEPA's most significant outcome was the requirement that all executive federal agencies prepare environmental assessments (EAs) and environmental impact statements (EISs). These reports state the potential environmental effects of proposed federal agency actions. NEPA does not apply to the President, Congress, or the federal courts.

History

NEPA grew out of the increased appreciation and concern for the environment that resulted from the 1969 Santa Barbara oil spill. During this time, environmental interest group efforts and the movement resulting from Rachel Carson's book, Silent Spring, helped to pass the Wilderness, Clean Air, and Clean Water Acts. Another major driver for enacting NEPA were the 1960s freeway revolts, a series of protests that occurred in response to the bulldozing of many communities and ecosystems during the construction of the Interstate Highway System.