N Both weathering and erosion produce
а. sediment
b. carbon dioxide
C. mass movement
d. igneous rocks

A. Sediment

Both weathering and erosion produce sediment
Weathering, by definition, is the physical integration and chemical decomposition of earth materials at or near the earth’s surface. Erosion, by definition, is the gradual destruction of something by natural forces (e.g. water, wind, ice). Therefore, the characteristic of both weathering and erosion is that it occurs naturally.

The height of the plants

Explanation:

In an experimental design, there are two types of variables: independent and dependent variables. The dependent variable is modified by the independent one. In other words, researchers can change the independent variable to see the possible effect in the dependent one. In this example, the study wants to see the effect of the amount of water (independent variable) on plant growth (dependent variable). They evaluate the height of the plants (growth) exposed to different volumes of water. So, the variable of interest in this study is the height of the plants.