In geology, <u>index fossils</u> are very important in allowing scientists to study the climate, environment, and diets of those fossils, and fossils from similar time periods.
Answer: They both give clues about life in the past.
There in an increase in reactivity because the nonmetals want to hold on to their electrons.
<h3>Reactivity</h3>
With less electronegativity, there is also less ionization energy. For metals, it is easier to lose the electrons, hence the metal becomes more reactive because it uses less energy.
For nonmetals, they are gain electrons and not lose them. Thus, an increase in electronegativity and ionization energy means an increase in reactivity because the nonmetals want to hold on to their electrons.
Find out more on reactivity at: brainly.com/question/17141109
Answer:
im not 100% sure but i would go with sneak
Answer:
A, D, E
Explanation:
You can't tell the other two options by the picture. Good luck on your assignment!! <3
