If a country‘s total fertility rate is measured at one what does this number most likely indicate about the countries population?
A. The countries population is aging
B. The countries population is growing
C. The countries birth rate is far higher than the countries death rate
D: The countries population is becoming younger on average.

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.

In what way does renewable energy differ form nonrenewable energy?

Which characteristics of temperature and salinity have the greatest influence on the movement of deep-ocean currentsa. warm and low salinityb. cold and high salinityc. cold and low salinityd. warm and high salinity