Help ?? .. imagine that a geologist finds an ammonite fossil in a rock layer. To which period Can the geologist fate that rock layer? 1. Tertiary, 2. Cretaceous, 3. Jurassic, 4. Triassic

Try c ? that’s what i got

It really doesn't matter for any of the questions that you've listed.

Answerthe global climate during the paleogene departed from the hot and humid conditions of the late mesozoic era and began a cooling and drying trend which dispite having been periodically disrupted by warm periods such as the paleocene-eocene thermal maximum, persists today;