Light travels at the speed of
a) over 5 billion km.
b) 5 million km.
c) over 1 billion km.
d) 15 million km

(1) which phrase describes an important agricultural change that occurred during the mississippian period? (a) first cultivation of wild grains (b) expansion of marsh elder farming (c) spread of corn agriculture (d) gathering of nuts and berries (2) which group of native americans use northwestern arkansas as it’s traditional hunting grounds? (a) osage (b) quapaw (c) woodland (d) caddo

What part did glaciers play in forming the great lakes?

Most tornadoes carry winds speeds in a range of km per hour