Which best compares radiation and conduction. Select two answers

If a balloon is taken outside on a very cold day, what will occur?

Contains chemical energy. a. heat b. light c. natural gas

The brightest star in the night sky in the northern hemisphere is sirius. its distance from earth is estimated to be 8.7 light years. a light year is the distance light travels in one year. light travels at a speed of 3.00 × 108 m/s. calculate the distance from earth to sirius in miles. (1 mi = 5280 ft) g