1. a fossil is determined through radioactive dating to be 1.5 million years old. this is an example of *1 point
a)absolute dating
b)age measurement
c)fossil aging
d)relative dating

Which blood cell spend most of their time in the lymphatic system?

Which set of characteristics best describes sedimentary rock? a) largest type of rock, made of organic matter, hardest type of rock b) often contains layers, forms near sources of water, contains fossils c) least abundant type of rock, made of other rocks, made mostly of minerals d) most abundant type in earth's crust, made of magma/lava, contains no fossils

If animal agriculture was eliminated, how much grain would become available for human consumption?