ASTR 380 Study Guide - Midterm Guide: Cytosine, Thymine, Stromatolite

• School: University of Maryland
• Department: Astronomy
• Course: ASTR 380
• Professor: Husdon

Document Summary

2. individual variation ( no two things alike) (unequal reproductive success) : overtime, advantageous traits will win out over less advantageous traits. Superposition: the oldest strata lie at the bottom andthe youngest at the top. : drawing stuff in pulling of stuff ( solar system formed; rocks and minerals accrete together) *harry miller, can make amino acids and more. Set up apparatus: put in h2o, ch4, nh3 and h) Experiment missing co2 ; which slowed things down; stuff still happens. Earth habitable because size ( larger world retain heat longer)/ ongoing heat deposition & 150 million years ago= dinosaurs , -65 million years ago= dinosaurs gone. Solar wind stripping: particles from solar wind in effect sweep atmospheric gas particles into space (slow) Earth only terrestrial with strong magnetic field (convection, rapid rotation,molten metal) : when solar wind particles gravitate toward poles. Greenhouse gasses slow escape of infrared radiation from lower atmosphere gases ; greater surface warmth.