Answer:
They release oxygen so we can breathe
Answer: the core of the earth heats up the more dense part of the mantle making it less dense.<em> </em>When the less dense part of the mantle rises, the more dense part of the mantle falls, and cools off. This motion continues creating convection currents
Answer:
Letter A - True
Explanation:
Science is in fact limited to topics in which evidence can be gained through experiments and/or observations.
This happens because to realize science, scientists have to strictly follow the scientific method. And in this method, essential steps are observation, formulation of hypothesis and experimentation.
It is also important to note that not all knowledge can be covered by the scientific method, this does not mean that it is not valid, just that it is not science.
Answer:
The Independent variable would be the pills that are being taken.
Explanation:
The Independent variable is the variable that you control because the Dependent variables depend on what the Independent variable is.
