Answer:
hertz (Hz); decibels (dB)
Explanation:
The Sound Measurement units are: Hertz (Hz) and Decibels (dB).
As you may know, sound travels in waves. The speed of the vibrations of these waves defines the tone of the sound. The tone is measured in Hertz, vibrations per second. The higher the number of vibrations per second the higher the sound. Hertz therefore measures the pitch of the sound. The decibel, in turn, measures the power of the sound, its energy, the stronger or weaker it is emitted. Measures the volume of the sound.
A carbon footprint deals with the resource usage but focuses strictly on the greenhouse gases released due to burning of fossil fuels. Greenhouse gas calculation make up a portion of an ecological footprint. An ecological footprint compares the total resources people consume with the land and water area that is needed to replace those resources, it measures the demand human populations put on nature. Both calculations illustrate the impact of human activity on the environment.
Genes are segments of deoxyribonucleic acid (DNA) that contain the code for a specific protein that functions in one or more types of cells in the body. Chromosomes are structures within cells that contain a person's genes. Genes are contained in chromosomes, which are in the cell nucleus.
I honestly think A. Predators never benefit prey populations, cause if they are eating the organism population decreases.