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brent

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Scientists have detected an asteroid that is 700,000,000 km from Earth. About how many astronomical units is that? 0.5 AU 1 AU 3.5 AU 4.5 AU
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Which statement describes Earth? It is an outer planet. It is a gaseous planet. It was formed from gas and dust. It has a thick atmosphere of hydrogen and helium.
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What do scientists know about the future of the universe? what dark matter is made of why the expansion of the universe is accelerating that stars will eventually burn out causing the universe to become cold and dark tha...
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In which era did mammals emerge? Cenozoic Mesozoic Paleozoic Precambrian
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Which effect of long-term environmental change is the driving force behind evolution? adaptation extinction migration speciation
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A hiker crosses topography near the sea that has low elevation and low relief and then climbs up steeply to reach a peak. Which two landforms has the hiker experienced? hills and plateau plateau and mountain mountain and...
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Which rock is an example of an organic sedimentary rock? iron ore rock salt limestone sandstone
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What is the approximate tangential speed of an object orbiting Earth with a radius of 1.8 × 108 m and a period of 2.2 × 104 s? 7.7 × 10–4 m/s 5.1 × 104 m/s 7.7 × 104 m/s 5.1 × 105 m/s
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Which measurement do geologists use to find the absolute age of once-living things? amount of decayed daughter elements total number of half-lives for the element potassium age of ancient rocks located near the remains a...
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Which statement explains what similar fossils found on distant continents suggest about Earth’s history? Animals have evolved over time. The continents have moved over time. Earth’s oceans had varying salt content throug...
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How are S waves and surface waves similar? Both arrive after P waves. Both compress the ground. Both travel through liquids. Both produce minimal ground motion.
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Which statement describes earthquakes? They release energy. They are caused by reduced stress in rocks. They begin at the epicenter. They result from movement on Earth’s surface.
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Which is a difference between the Paleozoic and Mesozoic era? Animals lived in the water during the Mesozoic and on land in the Paleozoic. The first birds emerged in the Paleozoic era while mammals first emerged in the M...
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Which force keeps the planets from floating off into space? Earth’s gravity the Sun’s gravity the moon’s gravity Milky Way’s gravity
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The acceleration due to gravity on Earth is 9.8 m/s2. What is the weight of a 75 kg person on Earth? 9.8 N 75 N 85 N 735 N \
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The gravitational force between two objects is 1600 N. What will be the gravitational force between the objects if the distance between them doubles? 400 N 800 N 3200 N 6400 N
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Which two scientists’ theories supported the general consensus of the people and religious teachings of the time? Aristarchus and Aristotle Aristotle and Ptolemy Ptolemy and Copernicus Galileo and Aristarchus
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Which statement reveals a property that can be used to identify a mineral? A mineral is found in Africa. A mineral is made in a laboratory. A mineral is used to make medicine. A mineral has hexagonal-shaped crystals.
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If all else stays the same, which change could be made to cause an increase in the gravitational force on a space shuttle? increasing the distance of the space shuttle from Earth decreasing the distance of the space shut...
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How do minerals form from magma? By rapidly melting in Earth's core By crystallizing as magma or lava cools By dissolving in ocean water By breaking down into smaller particles
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Which describes a feature of extrusive igneous rocks after formation? are coarse have a fine texture have large crystals are found in magma chambers
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Which phrases describe S waves? behave like a ripple move through liquids only are classified as primary waves are known as a type of direct evidence
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Which phrases describe S waves?
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Who rediscovered Aristarchus’s model of a heliocentric solar system?
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Existing rocks are buried and forced toward the mantle, increasing heat and pressure. This is the first step in the formation of metamorphic rocks. Which best describes the next step in the formation of metamorphic rocks...
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