cuve2003
cuve2003
09-05-2018
Biology
contestada
Why do northern lights appear in different colors?
Respuesta :
HayHay2001
HayHay2001
09-05-2018
The aurora is caused by the interaction of high-energy particles (usually electrons) with neutral atoms in earth’s upper atmosphere.
Answer Link
VER TODAS LAS RESPUESTAS ( 84+ )
Otras preguntas
A cylinder is filled with 10.0L of gas and a piston is put into it. The initial pressure of the gas is measured to be 96.0kPa. The piston is now pulled up, expa
a seventh-grade student has two $1 bills, one $5 bill, and one $10 bill in his wallet. He will randomly choose one bill, and without replacing the first bill, w
A study of the human gut performed in 1982 used various types of plates under different growth conditions to describe and enumerate the microbes in the human gu
A pathological, and generally undesirable, human reaction to psychological, social, occupational, or environmental stimuli is which of the following?A.Heart dis
Help me get the answer
A quarter is 1/5 of an inch thick and 5 quarters weigh one ounce. Stephanie built a toothpick bridge that could safely hold 3 pounds. Stephanie wanted to make a
A solid copper cube is attached to spring-like device and is able to oscillate horizontally with negligible friction. Each side of the cube is 1.50 cm long. The
If 2x + 3 + 7x = – 24, what is the value of x?
Groupon.com offers discounts on products and services in specific cities. The concept of Groupon is that the discount for the product or service can be claimed
A person who attended a picnic early in the day develops a very high fever and is unresponsive by the evening. This person most likely has been exposed to a(n)
