the bacteria are provided with regular source of nutrients
Earth is not at the center of the moon's orbit. Objects in space do not orbit in circles. The orbit in ellipses, or, ovals. Geometrically, an ellipse is formed by two focus points. Much like the sun is at one focus point of the Earth's orbit, the Earth is at one focus point of the moon's orbit.
(I do not own the image.)
The planets moons movements and the attraction that can be caused between it
Example : Pluto gains a fourth moon Or a massive new planet in our solar system
Answer: An independent variable, sometimes called an experimental or predictor variable, is a variable that is being manipulated in an experiment in order to observe the effect on a dependent variable, sometimes called an outcome variable.
Explanation: Hope this helps :)