The change in environments that may have occurred at the end of the paleozoic era may have been caused by
a. mass extinctions
c. plate tectonics
b. evolution of the dinosaurs
d. the beginning of an ice age

The correct answer is C. Plate tectonics.

The change of environment which might have occurred at the end of paleozoic era are caused by plate tectonics.

Tectonics plates is termed as scientific theory which describes large-scale motion where there is movement of seven large plates of larger number of small plates of lithosphere in earth.

The model of tectonic plates builds concept of continental drift. Lithosphere is the outermost shell which is found in planets and it is broken down into tectonic plates which are then composed of continental lithosphere and oceanic lithosphere.

the water is warmed up by the sun and then it evaporates into the atmosphere. the sunlight warms the water by its heat. water is then cooled down and condensation takes place. the water then finally returns back to the earth by the process of precipitation in the form of rain or ice.

explanation:

this age may represent the age of the earth's accretion, of core formation, or of the material from which the earth formed. this dating is based on evidence from radiometric age-dating of meteorite material and is consistent with the radiometric ages of the oldest-known terrestrial and lunar samples.