It seems that you have missed the given options for this question which are the following: <span>A. glacial striations B. terminal moraines C. eskers D. cirques
Anyway, the correct answer would be option B. The one that are formed as glaciers retreat and leave debris behind in mounds at the front of their farthest advance are terminal moraines. Hope this answer helps.</span>
Answer:
Because as we move down the group size/ radius of atom increases due to increase in shells and screening effect. The hold of nucleus on valence electrons decreases and effective nuclear charge decreases so it is easy to remove electron from greater sized atoms as compared to smaller sized aroms.
Energy required to remove electron is ionization energy so greater sized atoms have low ionization energy.
Explanation:
Using the ideal gas equation:
PV/T = constant
Therefore, the possible outcomes of increased pressure are:
Decreased volume if temperature is kept constant.
Increased temperature if volume is kept constant.
Nuclear reactions<span> involve a change in the atom's nucleus, they usually produce a different element & c</span>hemical reactions<span> only involve a rearrangement of electrons and do not involve changes in the nuclei.</span>
Answer:
element.
.it is pure substance composed of only one type of atoms.
.the number of element is more than 118.
compound.
.a compound is composed of atoms of two or more elements.
.the number of compound is very large in comparison of elements.
hope it help
