A lodge pole pines of NORTH America are affected by the following abiotic factors: A) fires and fungus
B) pine beetles and fungus
C) warm dry summers and cold wet winters
D) cold wet winters and pine beetles

The answer is c have a happy haloween :)

The proton has a positive charge while the neutron has no charge they both make up the nucleus of the atom while the elections have a negative charge and surround the nucleus of the atom. the protons and electrons are used to calculate the atom's mass whereas the neutrons don't affect the mass