Which of the following statements regarding the photoelectric effect is false?.

Carlo is wondering what causes plants to grow at different rates. carlo’s hypothesis is “plants will grow more when the day is longer.” what would be the difference between the test group and the control group in this experiment? type of soil type of plants exposure to sunlight method for measuring the growth

Which is these sentences can be deleted from the first paragraph sentence 4 sentence 2 sentence 5 sentence 3

Jerrold has to buy 12 copies of a textbook which costs $36.25 per copy. how much must he spend for them?