When sound waves interfere to create standing waves, the points on the
medium that move up and down with the largest amplitudes are called nodes. true or false

According to the big bang theory, after the "bang," the universe remained dark until about  300,000 yearsone billion yearsthree minutesthree billion years  later, when neutral atoms began to form.

Which short-term environmental change is most likely to lead to ground shifting, landslides, and the collapse of buildings or roads? forest fires flooding earthquakes

Which tool could you see a plant cell? a. a filter b. a microscope c. a microwave d. an electromagnet