The next eruptive period, the Castle Creek period, began about 400 BCE, and is characterized by a change in composition of St. Helens' lava, with the addition of olivine and basalt. The pre-1980 summit cone started to form during the Castle Creek period. Significant lava flows in addition to the previously much more common fragmented and pulverized lavas and rocks (tephra) distinguished this period. Large lava flows of andesite and basalt covered parts of the mountain, including one around the year 100 BCE that traveled all the way into the Lewis and Kalama river valleys. Others, such as Cave Basalt (known for its system of lava tubes), flowed up to 9 miles (14 km) from their vents. During the first century, mudflows moved 30 miles (50 km) down the Toutle and Kalama river valleys and may have reached the Columbia River. Another 400 years of dormancy ensued.

did lava flow from mt. st. helens?

A: yes

In May 2013, Wargaming announced World of Tanks Blitz, a mobile version of World of Tanks for tablets and smartphones using Windows 10, Android and iOS. The game allows 7v7 battles, as compared to the 15v15 battles on PC. The Closed Beta Test (CBT) started on 19 March, and ended 3 April. World of Tanks Blitz was released (in the iOS version only) on May 2014 in European countries like Norway, Sweden, Finland, Denmark, and Iceland, with all other countries currently awaiting launch. It was released on 27 June 2014 in North America, (again, in the iOS version only). Beta testing and/or release of the Android version has been released on the Russian server. World of Tanks Blitz was released on Android on 4 December 2014. As of February 2015, the Android version had 1.1 million downloads. The game was released in the Windows Store on 28 December 2015 making it available for PC users running Windows 10.

is world of tanks the same as world of tanks blitz?

A: no

The Apollo Victoria Theatre is a West End theatre on Wilton Road in the Westminster district of London, across from London Victoria Station. (The theatre also has an entrance on Vauxhall Bridge Road.) Opened in 1930 as a cinema and variety theatre, the Apollo Victoria became a venue for musical theatre, beginning with The Sound of Music in 1981, and including the long-running Starlight Express, from 1984 to 2002. The theatre is currently the home of the musical Wicked, which has played at the venue for twelve years as of 2018.

is the apollo victoria theatre in the west end?

A: yes

Certified email is a kind of email whose sending is certified by a neutral third-party, analogous to registered mail. A certified email aims to guarantee the same legal validity as a certified mail. For each certified email, the government will guarantee the legal validity with a delivery receipt that will be given to the sender. The receiver will be able to verify the mail using a legally signed delivery receipt. Certified mail aims to reduce postal costs and difficulties.

is there such a thing as certified email?

A:
yes