Author Question: You have a bicycle accident. Although you are OK, the bike is a mess. The rear wheel is bent, it ... (Read 54 times)

jake · **on:** Jul 16, 2018

You have a bicycle accident. Although you are OK, the bike is a mess. The rear wheel is bent, it will need a new chain, and the front tire is punctured. The estimated cost of repair is about 100. You can buy a new bike for about 120.

What is the most environmentally friendly option? A) Repair the bike
B) Buy a new bike and toss the old one
C) Drive a car instead
D) Throw away the old bike and buy a cheap used one at a garage sale

Question 2

How does a geologist see atoms?

What will be an ideal response?

canderson530 · **Reply #1 on:** Jul 16, 2018

Answer to Question 1

A

Answer to Question 2

TEM - Transmission electron microscope. Magnets focus streams of electrons; detector determines which electrons passed through the materials, and which encountered obstacles, revealing the internal arrangement of atoms and thus structure.