Planks constant law states that electromagnetic radiation from heated bodies is emitted in 1. Continious flow
2. Discrete units or quanta of energy
3. From all surfaces
4. In which wavelength is proportional to the frequency

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

Which lists the organs in the correct order as food passes from the mouth to anus?

The ozone hole appears in antarctica during