Which is the oldest… - QuestionCove

Ask your own question, for FREE!

Earth Sciences 38 Online

OpenStudy (anonymous):

Which is the oldest geologic era ? A. Cenozoic B. Precambrian C. Mesozoic D. Paleozoic

10 years ago

OpenStudy (anonymous):

@Dlwillis

10 years ago

OpenStudy (anonymous):

The Paleozoic Era is the oldest of the three Eras and dates from 540 Million to 248 Million Years Ago. During the Paleozoic Era multicelled living things acquired hard body parts, bones, vertebral columns, mandibles, and teeth. Common in the Paleozoic Era were trilobites, crinoids, brachiopods, fish, insects, amphibians, and early reptiles.

10 years ago

OpenStudy (anonymous):

:) Lol. Hope I was helpful

10 years ago

Can't find your answer? Make a FREE account and ask your own questions, OR help others and earn volunteer hours!

Join our real-time social learning platform and learn together with your friends!

Latest Questions

Strawberryluna: What are the articles of confederation? What are the bill of rights? What is the

3 hours ago 21 Replies 2 Medals

Twaylor: Does anyone know a good recipe for a small beef wellington? I need it for thanksgiving/dinner.

3 hours ago 11 Replies 0 Medals

gelphielvr: what are some characteristics that make you immediately judge someone without any

2 hours ago 6 Replies 0 Medals

Twaylor: I found a thing and I wanted to share it with yall: "a woman found me in a well m

8 hours ago 4 Replies 1 Medal

Rosa2011: How can people deal with self-hatred, for example, stop hating themselves?

9 hours ago 14 Replies 3 Medals

Countless7Echos: uuh I know it's a bit slanted but here is a project I was working on in class, it is didgori monument and it's all water color with a bit of marker just to

1 hour ago 6 Replies 1 Medal

Twaylor: I wrote a song a while back (No AI used), and I just found it:

20 hours ago 18 Replies 4 Medals

gelphielvr: What is a masochist? / are there multiple definitions of that word or only one

10 hours ago 9 Replies 1 Medal

MAGABACK: Im doing a straw rocket project rn. What makes the straw stay up for the longest

3 days ago 4 Replies 0 Medals

SharkIsKasy: Make this sound Human Analysis When the water got warmer, the sound moved faster. At 7u00b0C, the sound was slower, but at 35u00b0C, it was way faster. So, warm water makes sound go quicker. When the water had more salt in it, the sound also moved faster. The more salt there was, the quicker the sound waves went. That means saltier water helps sound travel faster. Conclusion This lab showed me that sound moves faster in warm and salty water. When the temperature or salt levels went up, the sound waves sped up. Thatu2019s important for animals like whales and dolphins because they use sound to talk and find food. If the ocean gets warmer, their sounds might travel farther. But if the ocean gets less salty from melting ice, it could make it harder for them to use sound. That might make things more difficult for animals like beluga whales in the Arctic.

3 days ago 8 Replies 3 Medals