Keisha told her friend that she can get to the town library by walking one mile east, turning left, and then walking a half a mile north. which best describes how keisha can improve these instructions to better her friend find the library? using meters as the unit instead of miles drawing a picture of the library on a line diagram estimating the amount of time to get to the library providing a reference point to follow

the correct answer is letter D, providing a reference point to follow

The correct answer is option D, providing a reference point to follow

Explanation:

If keisha will provide reference point for all the directional instruction, it will help anyone in the following ways –  

a)When a person follows Keisha’s direction one by one and at every step the person also sees the reference point as mentioned by her, the confidence of people following her instruction will boost as they would be satisfied within themselves that they are following  the right path .

b)In case if they somehow miss the direction, they can come back again to the lost directions with the help of associated reference point.  

the solar system used to have much dust particles option no d

assuming that your periodic table has eighteen columns, you should highlight   the four elements in the third column from the left of the table.

neutral atoms of elements after calcium contain d electrons. the energy of d orbitals of a particular main shell lies between the energy of the s and p orbitals of the next main shell. for example, electrons in the have energy higher than those in the orbital while lower than those of the orbital.

by the aufbau principle, electrons fill orbitals one at a time, starting from those of the lowest energy. the orbital is therefore filled right after orbitals and before orbitals.  

potassium has electron configuration and calcium . the s orbital of a main shell holds a maximum of two electrons. the next element would thus have the electron configuration and satisfy the requirements.

a neutral atom of the element contains three electrons on top of the most recent noble gas element. it should thus be placed in the third column of the periodic table. both scandium and yttrium would satisfy the conditions. an aufbau diagram indicates that the 4f orbital is filled before the 5d. however, it appears that exceptions exists for both lanthanum and actinium. neutral atoms of the two d-block elements also demonstrate the and should be highlighted as well.