what is another name for the visible surface of the sun?
biosphere
lithosphere
chromosphere
photosphere

Which of the following best describes the purpose of technology?

Which type of scientific statement is defined as a hypothesis or group of hypotheses that can be accepted as true based on the repeated experimentation with similar results

Which of the following describes the difference in stimuli required to detect a difference between the stimuli? a. just noticeableb. signal detectionc. subliminald. top down