Evolution of life on earth

-

Evolution of life on Earth

Date.   Gya.   Event. 

14 Sep4.1First known "remains of biotic life" found in 4.1 billion-year-old rocks in Western Australia.[5][6]

21 Sep3.8First Life(Prokaryotes)[7][8][9]

30 Sep3.4Photosynthesis

29 Oct2.4Oxygenation of Atmosphere

9 Nov2Complex Cells (Eukaryotes)

5 Dec0.8First Multicellular Life[10]7 Dec0.67Simple Animals

14 Dec0.55Arthropods (ancestors of insects, arachnids) 

17 Dec0.5Fish and Proto-amphibians

20 Dec0.45Land Plants

21 Dec0.4Insects and Seeds

22 Dec0.36Amphibians

23 Dec0.3Reptiles

24 Dec0.25Permian-Triassic Extinction Event, 90% of Species Die Out

25 Dec0.23Dinosaurs

26 Dec0.2Mammals

27 Dec0.15Birds

28 Dec0.13Flowers

30 Dec, 06:240.065Cretaceous–Paleogene extinction event, Non-avian Dinosaurs Die Out[11]

Comments

Post a Comment

Popular posts from this blog

First post in Big Rip Theory

-
Image
Big Rip In  physical cosmology , the Big Rip is a  hypothetical   cosmological model concerning the  ultimate fate of the universe , in which the  matter  of the  universe , from stars and galaxies to atoms and subatomic particles, and even  spacetime  itself, is progressively torn apart by the  expansion of the universe  at a certain time in the future. According to the hypothesis, first published in 2003, the  scale factor  of the universe and with it all distances in the universe, which is known to be increasing, will be found to increase exponentially. If this were to happen, the model speculates that eventually in many billions of years' time the scale factor would become  infinitely  large, pulling even subatomic particles and the fabric of  spacetime  apart, and ending our universe. The possibility of sudden  singularities and crunch or rip singularities occur only for hypothetical matter with implausible physical properties.
Read more

Introduction

-
Image
Hello ✋🙋🙋🙋🙋✋✋✋ My Name is Aman Kumar I'm a student And I'm going to start a book written by me in my mind I'm not a professional writer this is my first time.This book is research of m y 8 years. OK i know u all thinking hmm.. Fak raha hai 8 saal lie no its not lie its true ye book meri invention hai to all human kind. Kya tum Saab ke maan me ye saval (question) nahi aata   ke ye universe kha se aye hum kaise aye kya hua hooga ki ye infinite( anant ) bramhand baana hoga aur humara ghar yani ( Dharti ) earth baani hogi kitna samye laga hoga is puure universe k o banne me kabhi is subject par vichar kara hai nahi kia hooga paata hai aaj kal ka moto nahi motorola nahi ( aaj kal ka suvichar yaar apple ne iPhone x launch kar diya Samsung ne s9 launch kar diya Intel ka naya processer i9 a gaya baas yahi par dimaag ke puri power khatam nahi yaar humare pass sirf 100 saal hai bolne ko ke insaan ke umar
Read more