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

when atoms of different types of elements join together, they make molecules called compounds. water consists of compound molecules made up of 2 hydrogen atoms and 1 oxygen atom. this is why it's called h2o. water will always have 2 times the number of hydrogen atoms as oxygen atoms.

lysosome is this part of the cell is surrounded by a very thick outer membrane to protect the rest of the cell from its strong enzymes.

measuring light intensity

light meters can be used to measure light intensity. the meter is held at the soil surface and pointed in the direction of the maximum light intensity, and then the meter is read.

errors can be made when measuring light intensity by accidentally shading the light meter. the reliability of the results can be checked by taking many samples.

answer; hydrologic cycle;