Asteroid Study guides, Class notes & Summaries

What is extinction? correct answer: The loss or death of a species What is mass extinction? correct answer: A decline in biodiversity greater than the background extinction rate What is background extinction? correct answer: Background extinction occurs when certain populations are reduced to zero because of normal environment change, emerging disease, predation pressure, or competition with another species How are mass extinctions detected and how many have been detected? correct an...

What makes up 99.8% of the solar system's mass? The sun Mercury, Venus, Earth and Mars are called what type of planets? Terrestrial Terrestrial planets are ________ in size and ______ in mass and have a _______ density of 3.9-5.5 g/cm3 Small; Low; High What terrestrial planet is the densest of them all. Earth Jupiter, Saturn, Uranus and Neptune are called what types of planets? Jovian Jovian planets are ______ is size, ______ in mass and have a _______ density of about 0.7-1.6 g/cm...

Respiratory pharmacology Respiratory drugs Pharmacology of respiratory system Asthma medication COPD medication Bronchodilators Inhaled corticosteroids Anticholinergics for asthma/COPD Beta-agonists for asthma/COPD Pharmacotherapy of respiratory diseases Mechanism of action of respiratory drugs Clinical trials in respiratory pharmacology Treatment guidelines for respiratory conditions Respiratory drug interactions Side effects of respiratory medications

Compared to the age of the Universe of about 14 billion years, the currently accepted age of Earth is about ________ years as determined by using radioactivity for dating rocks and minerals. A) 4.6 thousand B) 4.6 billion C) 5.4 million D) 13.7 billion - B The ________ division of the geologic time scale is an era of the Phanerozoic Eon. A) Paleocene B) Paleozoic C) Permian D) Proterozoic - B The Earth's core was formed from ________. A) a massive nickel iron asteroid that was the n...

Which of the following are terrestrial planets? a) only earth b) earth, moon, and venus c) mercury, venus, earth, and mars d) mercury, venus, mars, moon, earth, and pluto e) mercury, venus, earth, moon, mars, and ceres Correct Answer-c) mercury, venus, earth, and mars What causes a meteor shower? a) A comet and an asteroid collide. b) Earth runs into a stray swarm of asteroids. c) Earth runs into the debris of an old comet littering its orbit. d) Meteorites are ejected from the M...

Compared to the age of the Universe of about 14 billion years, the currently accepted age of Earth is about ________ years as determined by using radioactivity for dating rocks and minerals. A) 4.6 thousand B) 4.6 billion C) 5.4 million D) 13.7 billion - B The ________ division of the geologic time scale is an era of the Phanerozoic Eon. A) Paleocene B) Paleozoic C) Permian D) Proterozoic - B The Earth's core was formed from ________. A) a massive nickel iron asteroid that was the n...

1. What is the single most important reason that astronomers have learned more about our planetary system in the last 30 years than all of history before then. a. astronomers today are a lot smarter than astronomers were earlier b. the Hubble Space Telescope c. we have been able to send spacecraft to visit many planets and satellites d. radio telescope arrays allow astronomers to make out details on the planets that they have never been able to see before e. the planets (moving in their s...

HESI RN EXIT Exam Questions and Answers_HESI RN EXIT 2024 (HESI) A+ Graded 100% Pass A nurse working on an Endocrine Unit should see which client first? - CORRECT ANSWER-A pt taking corticosteroids who has become disoriented in the last two hours. A pt presses the call bell and requests pain medication for a severe headache. To assess the quality of the pt. Pain, which approach should the nurse use? - CORRECT ANSWER-Ask the patient to describe the pain The nurse is wearing personal prote...

Unit 16 Assignment A Overall Grade: Distinction Course Overall Grade: D*D Contains: Solar systems, Earth, Mercury, Venus, Mars, Jupiter, Saturn, Uranus, Neptune, Pluto, Ceres, Makemake, Haumea, Eris, Moons, Europa, Io, Ganymede, Titan, Big Bang theory, creation of solar system, stars, comets, life cycle of a comet, Keplers laws 1-3, compositions (C, S and M), asteroid belt, meteoroids, NASA, Oort clouds, radiation belts, gravity, sun, moon, earth, lunar months, moon cycle, solar eclipse,...

Kuiper belt Object (KBO) - A small body made of ice and rock that orbits beyond Neptune's orbit, in the Kuiper Belt. Exoplanet - a planet that orbits a star outside the solar system dwarf planet - Pluto (has 5 moons in KBO) Eris (has 5 moons) Ceres (in asteroid belt) asteroid belt - the region of the solar system between the orbits of Mars and Jupiter, where many asteroids are found Kuiper belt - A region of the solar system that is just beyond the orbit of Neptune and that contains sm...