Which of the following best describes succession? a
b
The formation of new rock from volcanic disruptions.
The creation of a new ecosystem from nothing.
When trees begin to enter an ecosystem.
When natural disasters destroy an ecosystem and affect biodiversity
С
Od

each chemical family is represented as a group or column on the periodic table. based on chemical properties, there are 6 types of chemical families. group 1 represents alkali metals, group 2 represents alkaline earth metals, groups 3 to 12 represent transition metals, groups 13 to 16 represent non-metals and other metals, group 17 represents halogens and group 18 represents noble gases.