How can you use the electron configuration to determine the number of valence electrons

Which of the following is an effect of the uneven heating of the earth by the sun? a sea breeze a land breeze a convection current all of the above

Which of the following terms best matches this definition: the process where humans choose the traits that will be present in the next generation through breeding. question 4 options: genetic determinism artificial selection acquired selection natural selection

Which of the following was not a major animal on land during the carboniferous period? amphibians insects both a and b none of the above