All of the following actions to protect the sustainability of natural resources except

a.
banning the hunting or fishing of an endangered species
b.
replacing regular light bulbs with compact fluorescent bulbs (cfcs)
c.
walking to a friend’s house instead of taking a car
d.
planting grass in dry climates, even if it requires irrigation

It is reasonable to assume that nations with a low total fertility rate (tfr) and a modest amount of population growth are in

One of the brightest comets of the 20th century was comet hyakutake, which passed close to the sun in early 1996. the orbital period of this comet is estimated to be about 30,000 years. find the semi-major axis of this comet’s orbit. compare it to the average sun-pluto distance and to the distance to alpha centauri, the nearest star to the sun, which is 4.3 light-years distant.

How does central place theory explain patterns in the size and distribution of cities?