Mount St. Helena is an active stratovolcano located in which among the following countries?

The correct answer is the United States of America. MOUNT Saint Helena is a peak in the Mayacamas Mountains of California USA.Stratovolcanoes, or composite volcanoes, are tall and conical volcanoes composed of one layer of hardened lava, TEPHRA, and volcanic ash. Basic Information about the USA:Number of States in the USA: FiftyCapital: Washington DCBounded by: on the north by Canada, on the east by the Atlantic Ocean, on the south by the Gulf of MEXICO and Mexico, and on the west by the Pacific Ocean. Place in the WORLD: In terms of Area, 4th largest country after Russia, Canada, and China.Place in the world: In terms of GDP, the United States with a GDP worth USD 21.44 trillion is the largest economy followed by China (USD 14.41 trillion), Japan (USD 5.15 trillion), Germany (USD 3.16 trillion), and India (USD 2.94 trillion).