It is a controlled experiment
Answer:
Various limitations of Mendeleev's periodic table are:-
Position of hydrogen - he couldn't assign a correct position to hydrogen as it showed properties of both alkali and halogens .
Position of isotopes - he considered that the properties of elements are a function of their atomic masses. Hence isotopes of a same element couldn't be placed.
In the d-block , elements with lower atomic number were placed before higher atomic number.
Explanation:
The electromagnetic force is responsible for most of the interaction we see in our environment today. The EMF holds electrons in their orbit around the nucleus.
Factors that can affect a magnets strength include : heat, radiation, strong, electrical currents in close proximity of to the magnet
I believe it is D.
Since something with a high temperature has a higher kinetic energy, it would make sense for the energy of the molecules in the ground to increase. This is because the increasing temperature of the ground allows for the molecules to become faster in motion.
