What are two processes that must occur to form soil? a. weathering breaks rocks into minerals and plants die and decay. b. erosion and weathering c. plants produce loam and plants produce humus d. erosion transports mineral particles and plants die and decay

jim mohr

explanation:

martians or other types of aliens represent a unique fear as opposed to zombies. vampires and other types of monsters.   in most sci-fi stories, aliens come from other worlds and have different or more advanced technology.   abductions and experimentation on human bodies that involve these technologies, or the use of these technologies against human beings and the use of unknown "powers", are a type of fear that's different from that of other types of monsters.