Answer:
producer-kelp
primary consumer- sea urchin
secondary consumer- otter
A. Sound is a form of mechanical energy
Some isotopes, however, decay slowly, and several of these are used as geologic clocks. Dating rocks by these radioactive timekeepers is simple in theory, but the laboratory procedures are complex. <span>All methods rely on the fact that certain elements (particularly uranium and potassium) contain a number of different isotopes whose half-life is exactly known and therefore the relative concentrations of these isotopes within a rock or mineral can measure the age.</span>
Answer:
Chlorophyll is a green pigment which is present inside the chloroplast. Chlorophyll is responsible for the conversion of sun energy into chemical energy in the process of photosynthesis. Photosynthesis is a process in which energy is produced by the combination of carbondioxide and water in the presence of sunlight produces glucose and oxygen. This sunlight is absorbed by chlorophyll which is present in the leaves.
Answer:
When movement of an object occurs work is measurable.
