In your textbook, read about the urinary system and homeostasis. Complete each statement. 11. __________________________ and __________________________ are two toxic nitrogenous wastesthat your kidneys constantly remove from your bloodstream. 12.The kidneys also help regulate the bloodâs ________________________ ________________________ ,and __________________________. 13.n your textbook, read about the urinary system and homeostasis. Complete each statement. 11. __________________________ and __________________________ are two toxic nitrogenous wastesthat your kidneys constantly remove from your bloodstream. 12.
The last eruption of this stratovolcano occurred in March 1944. A stratovolcano, also known as a composite volcano, is a conical volcano built up by many layers (strata) of hardened lava, tephra, pumice, and volcanic ash. Unlike shield volcanoes, stratovolcanoes are characterized by a steep profile and periodic explosive eruptions and effusive eruptions, although some have collapsed craters called calderas.
Professor Iain Stewart tells the story of Mount St Helens' 1980 eruption. An earthquake-triggered landslide unleashed a sideways blast of hot gas and ash from this famous stratovolcano volcano (also known as a composite volcano) in the state of Washington, USA.