The process of circular motion in the earth’s mantle that causes the plates of the lithosphere to move is called -conduction -convection -deposition -drifting

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 average speed of a car that travels 40mph for 1 hour and 60 mph in another hour will mark brainliest

Positrons are spontaneously emitted from the nuclei of