Which sound waves in the electromagnetic spectrum are considered low energy waves

Juan created a chart to him study for a test. which headings best complete the chart? x: transparent objects y: opaque objects x: opaque objects y: transparent objects x: high frequency waves y: low frequency waves x: low frequency waves y: high frequency waves

For this car, predict the shape of a graph that shows distance (x) versus time (t). note that time is the independent variable and will be on the bottom axis. need asap

Give me a example of a decomposer. explain what would happen if decomposers were absent from a forest ecosystem