Explanation:
Elements in same group show same valency because they have same number of electrons in ther outermost shell i.e. Valence shell. Since valency depends upon the valence electrons so they have same valency. Elements in the same group have same valancy.
Government control is the second major requirement that must be met before information can be classified. Information must be under U.S. Government control before classification of that information by that government is anything other than a relatively ineffective action.
Answer:
Yes
Explanation:
Fertilizer are given to the plants which provides extra minerals and nutrients to the soil and help the plant to grow faster. They are available in the form of chemicals in the market. Fertilizers are added to the soil for the faster growth of the plants.
In an experiment where fertilizers are given to the plant ---
Independent variables is : The amount of the fertilizers given to the plant which is measured in grams.
Dependent variable is : growth of the plant which is measured in number of leaves and in height.
