Looking at the geologic timeline, what is the pattern that scientists use to determine when an ERA begins and ends? Group of answer choices Scientists have divided the eras into large, equal intervals of time. An era begins every time a new species emerges in the fossil record. Scientist use the emergence and extinction of species.

the most speciallized is b. grizzly bear

correct answer: false

while planning water activities, it is very important to consider the weather, because if we do not plan and are going for a surf, then it might be that the hurricane came and drown us or may carry us to long distance from where we can not come back. there are many reasons to take information about the weather when we are planning any water activities.

hence, the correct answer would be false.