The weathering of surface material most directly formed which of these locations?
a. the himalayas
b. the great plains
c. the hawaiian islands
d. the mississippi river delta
personally i think it's a or d

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.

The distance a car travels between the time the driver decides to stop the car and the time the driver puts on brakes is called the reaction distance. how does the reaction distance change with speed? a.reaction distance decreases with with speed b.reaction distance stays the same with speed c.reaction distance increases with speed. d.there is not enough information to answer the question

Apex! which term describes the expanse of flat land in this photograph? (see picture) a.) mountainb.) plainc.) rift valleyd.) plateau