The diagram below shows waves A and B in the same medium am
Compared to wave A, wave B has:
a) twice the amplitude and twice the wavelength
Ob) twice the amplitude and half the wavelength
O c) half the amplitude and the same wavelength
the same amplitude and half the wavelength

I need help with both questions please

Which property of fossils allow scientists to determine the relative rock ages..

In which situation has the independent variable for the experiment been changed? check all that apply. changed from counting the number of duckweed at day 0 and day 14 to counting them every day changed from testing duckweed growth in beakers to testing duckweed growth in large outdoor tanks changed from testing the effect of ph on duckweed growth to testing the effect of light levels on duckweed growth changed from testing the effect of acid ph on duckweed growth to testing the effect of basic ph on duckweed growth

What is the rate of 12 liters of water moving through a water hose in 4.0 minutes?