Using the Principal of Superposition, choose the statement below that is correct. A.) An archeologist digs into the Earth and makes a pile of the rocks and dirt he removes. The rocks on top of the pile are the youngest.
B.) A scientist studies a rock wall in the Grand Canyon. He is taking samples from half way down the wall. He knows that his rock sample is older than the rock at the top of the wall.
C.) A small shift in the Earth’s crust pushes a large piece of rock onto the surface. This rock is younger than the rock below it.

Zoe decided to measure the hand length of each of her classmates. first she marked a line across each student's wrist and lined up a ruler from this mark to the top of the middle finger to measure the length. then she recorded the measurements in the table below. marla did this the same way for each classmate, and then zoe used this ruler to measure each straight line and record the data below. this data is invalid. what is the most likely reason why it is invalid? the ruler is marked in centimeters, but zoe recorded data in inches. the range of lengths is too wide, so zoe must have misread the ruler. marla’s complicated measuring procedure was overly confusing. marla could have been inconsistent while drawing outlines of fingers.

Building glycogen from glucose molecules is an example of what

Which short-term environmental change is most likely to lead to ground shifting, landslides, and the collapse of buildings or roads? forest fires flooding earthquakes