What igneous rock can float on water?

What igneous rock can float on water?

Pumice is composed of highly microvesicular glass pyroclastic with very thin, translucent bubble walls of extrusive igneous rock.

What city has the most fountains?

Kansas City, Missouri, is often abbreviated as KC (abbreviations often refer to the metro area). It is officially nicknamed the City of Fountains. With over 200 fountains, the city claims to have the second most in the world, just behind Rome.

Who introduced hello to answer the telephone?

Hello wasn’t used as a greeting until many years later when the telephone was invented. Inventor Thomas Edison is given credit for suggesting the use of hello as a standard greeting when answering a telephone. Edison’s competitor, Alexander Graham Bell, had his own idea for a proper telephone greeting.

Who has played Batman the most times?

Most actors who have portrayed Batman on the silver screen lasted only one film. With the release of the Dark Knight Rises, Christian Bale became the first man to played Bruce Wayne and his alter-ego more than twice in the big screen. In 2017, Ben Affleck joined Bale as the only actor to play Batman in three films. Affleck appeared as the caped crusader in 2016’s Batman vs Superman, and Suicide Squad movies and again in the Justice League movie a year later.

Do dogs get cavities in their teeth?

Pets, like their human owners, can get cavities. However, cavities are relatively rare in dogs because dogs’ diets generally are not high in decay-causing sugars. Veterinary dental experts have noticed a mild rise in the incidence of cavities among dogs fed sugary treats.

How much is the Nike logo worth?

For example, in 1971, Phil Knight paid Carolyn Davidson $35 to create the Nike “Swoosh” logo. Today, global brand consultancy Interbrand ranks Nike No. 25 on its list of the top 100 most valuable brands in the world, with an estimated value of more than $13 billion.

Why was Ken Mattingly replaced for the Apollo 13 mission?

Mattingly’s first assignment was to be the Command Module Pilot on the Apollo 13 mission. Three days prior to launch, he was removed from the mission due to exposure to German measles (which he never contracted) and was replaced by the backup CM pilot, Jack Swigert.

Is ceviche raw fish?

Technically speaking, cooking requires heat, so ceviche (also known as seviche or cebiche), a dish in which raw fish is marinated in citrus juice, isn’t cooked. But it’s not exactly raw, either. Both heat and citric acid are agents of a chemical process called denaturation.