Where does the fuel people use to heat homes and power cars come from? A. the remains of plants and animals that lived long ago
B. sedimentary rock that is thousands of years old
C. factories make it from rocks
D. inside fossils found deep in canyons

Why does a red shoe appear red in daylight

What is the main purpose of patent attorneys? defend the company against legal claims manage financial investments invent new products protect rights to new products and processes

Inside a flashbulb, oxygen surrounds a thin coil of magnesium. when the flashbulb is set off, a chemical reaction takes place in which magnesium combines with oxygen to form magnesium oxide. which of the chemical equations matches the reaction above? a. mg + o2 mgo2 + energy b. 2mg + o mg2o + energy c. 2mg + o2 2mgo + energy d. mg + o mgo + energy