This table shows four examples of experiments.

A 2-column table with 4 rows. The first column labeled person has entries Lily, Astrid, Henry, Bob. The second column labeled Experiment has entries Measure the energy change in a compress spring, Measure the energy change when rolling a ball down a hill, Measure the work being done when a dart is thrown, Measure the work being done when a box is lifted to a shelf.
Which describes who will record their measurements in joules?

Lily and Henry
Astrid and Bob
Lily, Astrid, Henry, and Bob
Astrid, Henry, and Bob

goog may have it for you

the answer is; comparing the frequency of collisions with and without the device

this makes the anti-collision system an independent variable and the collisions a dependent variable. if there are fewer collisions with an anti-collision system that without, then it can be stated that the system is a success. essentially, collisions under an anti-collision system are compared with the frequency of collisions by cars with the human drivers.

straight or amphibians are homeothermic to thermal

b. lithosphere, asthenosphere, mesosphere   is the answer most likely