Answer:I think it’s answer D-Were formed by water based solution , water makes everything more flat and smooth , I’m not sure though
Answer:
number B i think
Explanation:
The competitive exclusion principle tells us that two species can't have exactly the same niche in a habitat and stably coexist. That's because species with identical niches also have identical needs, which means they would compete for precisely the same resources
D.avian dinosaurs survived
Avian dinosaurs are dinosaurs with wings, which mean birds. so birds or avian dinosaurs survived.
please make me brainiest if it is correct