Determine the age of the rocks and fossils by moving the samples to the mass-spectrometer. Record the data in the Student Guide

Explain how ancient whale fossils found in eqypt are believed to support the theory of evolution.

Agroup of students is studying convection currents. they fill two identical balloons with the same amount of helium. one balloon is placed in a freezer and the other in an area with warm air. after 10 minutes, the balloons are released from a height of 1 meter. which of the following do the students most likely observe? question 8 options: the cold balloon expands and rises. the warm balloon shrinks and sinks. the balloons rise at the same rate. both balloons are the same size. the ballons both rise. the cold ballon is larger than the warm balloon. the warm balloon expands and rises. the cold balloon shrinks and sinks.

Brainliest ! which would require more force to move or slow down between a bowling ball and a soccer ball? explain why?