how many pairs of electrons does the carbon atom share with each hydrogen atom in the chemical compound methane which has the formula ch 4?

Which phrase is the best summary of the model shown? a. the transfer of the sun's energy through trophic levels b. a series of aerobic and anaerobic reactions c. a transformation of light energy into chemical energy d. the breakdown of food molecules

Ais a group of individuals of the same that exist together in the same place at the same time

Will mark branliest. the theory of plate tectonics was developed with the contribution of scientists from many different disciplines. which of the following is a contribution from geophysicists?