Earth Science-First Semester (1st Quarter)
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Questions and Answers

Which of the following is a characteristic of Terrestrial planets?

  • Solid and rocky surfaces (correct)
  • Large concentration at the center
  • Formed from an interstellar cloud
  • Gas and icy surfaces

    • Which theory explains the formation of the Solar System as a large cloud of gas contracting due to self-gravity?

  • Encounter Hypothesis
  • Protoplanet Hypothesis
  • Nebular Hypothesis (correct)
  • Roque star passing close to the sun

    • Which factor is essential for the existence of life on Earth?

  • Heat from geothermal energy
  • Oxygen gas in the atmosphere
  • Water (correct)
  • Carbon dioxide in the atmosphere

    • Which planet in our Solar System is the hottest?

    <p>Venus</p> Signup and view all the answers

    Where is the asteroid belt located in our Solar System?

    <p>Between Mars and Jupiter</p> Signup and view all the answers

    Which of the following is NOT a characteristic of Jovian planets?

    <p>Solid and rocky surface</p> Signup and view all the answers

    Which theory suggests that the solar system began with a fragment from an interstellar cloud?

    <p>Protoplanet Hypothesis</p> Signup and view all the answers

    Which of the following is NOT a factor essential for the existence of life on Earth?

    <p>Magnetic field</p> Signup and view all the answers

    Which theory on the origin of the Solar System is considered the most popular?

    <p>Protoplanet Hypothesis</p> Signup and view all the answers

    Which of the following factors is NOT essential for the existence of life on Earth?

    <p>Magnetic Field</p> Signup and view all the answers

    Which planet in our Solar System has two moons named Deimos and Phobos?

    <p>Mars</p> Signup and view all the answers

    Which process is used to extract ores that are found beneath the earth's surface?

    <p>Underground mining</p> Signup and view all the answers

    What is the purpose of heap leaching in the mining process?

    <p>To separate ore from rocks using chemicals like cyanide and acid</p> Signup and view all the answers

    What is the main contributor of minerals in the Philippines?

    <p>Palawan</p> Signup and view all the answers

    What are the negative effects of mining mentioned in the text?

    <p>Destruction of habitat, deforestation, and health hazards for miners</p> Signup and view all the answers

    What is the closure process of a mining site called?

    <p>Mine site decomposition</p> Signup and view all the answers

    Which country is ranked fifth in terms of mineralization in the world?

    <p>Philippines</p> Signup and view all the answers

    What is the process where miners dig straight down until they reach their desired depth?

    <p>Shaft mining</p> Signup and view all the answers

    Which of the following is NOT a negative effect of mining mentioned in the text?

    <p>Job opportunities</p> Signup and view all the answers

    Which mineral is the Philippines ranked third in?

    <p>Copper</p> Signup and view all the answers

    What is the process called where miners dig straight down until they reach their desired depth?

    <p>Shaft mining</p> Signup and view all the answers

    What is the addition of chemicals like cyanide and acid to separate ore from rocks called?

    <p>Heap leaching</p> Signup and view all the answers

    Which of the following energy sources relies on the circulation of hot water or steam underground?

    <p>Geothermal energy</p> Signup and view all the answers

    What is the energy generated from falling water called?

    <p>Hydroelectric energy</p> Signup and view all the answers

    Which location is considered the best for windmills?

    <p>Coastlines</p> Signup and view all the answers

    What is the process of converting solar energy into electricity using mirrors, lenses, and a tracking system called?

    <p>Concentrated solar power</p> Signup and view all the answers

    Which of the following is NOT a type of biomass?

    <p>Coal</p> Signup and view all the answers

    Which of the following energy sources relies on the circulation of hot water or steam underground?

    <p>Geothermal energy</p> Signup and view all the answers

    What is the process of converting solar energy into electricity using mirrors, lenses, and a tracking system called?

    <p>Concentrated solar power</p> Signup and view all the answers

    Which of the following is NOT a type of renewable energy mentioned in the text?

    <p>Fossil fuels</p> Signup and view all the answers

    Which of the following energy sources relies on the circulation of hot water or steam underground?

    <p>Hydroelectric energy</p> Signup and view all the answers

    What is the process of converting solar energy into electricity using mirrors, lenses, and a tracking system called?

    <p>Concentrated solar power</p> Signup and view all the answers

    Which location is considered the best for windmills?

    <p>Coastline</p> Signup and view all the answers

    Which of the following energy sources relies on the circulation of hot water or steam underground?

    <p>Hydroelectric Energy</p> Signup and view all the answers

    What is the energy generated from falling water called?

    <p>Hydroelectric Energy</p> Signup and view all the answers

    What is the process of converting solar energy into electricity using mirrors, lenses, and a tracking system called?

    <p>Concentrated Solar Power</p> Signup and view all the answers

    Which of the following is NOT a type of renewable energy mentioned in the text?

    <p>Fossil Fuels</p> Signup and view all the answers

    Which location is considered the best for windmills?

    <p>Hilltops</p> Signup and view all the answers

    Which of the following energy sources relies on the circulation of hot water or steam underground?

    <p>Hydroelectric energy</p> Signup and view all the answers

    What is the energy generated from falling water called?

    <p>Hydroelectric energy</p> Signup and view all the answers

    Which location is considered the best for windmills?

    <p>Coastline</p> Signup and view all the answers

    Which of the following energy sources relies on the movement of air from higher to lower pressure?

    <p>Wind energy</p> Signup and view all the answers

    What is the process of converting solar energy into electricity at the atomic level called?

    <p>Photovoltaic conversion</p> Signup and view all the answers

    Which of the following is NOT a renewable energy source mentioned in the text?

    <p>Fossil fuels</p> Signup and view all the answers

    Which of the following is the smallest particle size in soil?

    <p>Clay</p> Signup and view all the answers

    Which soil order is characterized by being very weathered and common in tropical countries?

    <p>Oxisols</p> Signup and view all the answers

    What is the process called when poor management worsens the natural process of soil erosion?

    <p>Intensive agriculture</p> Signup and view all the answers

    Which human activity involves converting land to urban areas and covering the soil with cement?

    <p>Urbanization</p> Signup and view all the answers

    What is one of the best ways to conserve soil and lessen soil pollution?

    <p>Recycling garbage</p> Signup and view all the answers

    Which type of soil is composed of volcanic ash?

    <p>Andisols</p> Signup and view all the answers

    What is the process called when the land becomes irreversible and can no longer be recovered for its original use?

    <p>Desertification</p> Signup and view all the answers

    Which type of soil is deep and fertile?

    <p>Mollisols</p> Signup and view all the answers

    Which of the following is NOT a biological factor that contributes to soil formation?

    <p>Rocks</p> Signup and view all the answers

    Which soil horizon contains partly decayed organic material?

    <p>O Horizon</p> Signup and view all the answers

    What is the main human activity that degrades soil quality by reducing the amount of earth air, water, and space available to roots and soil organisms?

    <p>Soil compaction</p> Signup and view all the answers

    Which type of waste is derived from farming and poultry?

    <p>Agricultural waste</p> Signup and view all the answers

    What is the most effective way to reduce waste according to the Waste Management Hierarchy of Option?

    <p>Source reduction</p> Signup and view all the answers

    Which method of waste disposal is considered the cheapest and most convenient?

    <p>Landfill</p> Signup and view all the answers

    What is the main purpose of composting?

    <p>To turn waste into fertilizer</p> Signup and view all the answers

    Which type of waste can cause air pollution if present in excessive amounts?

    <p>Gaseous waste</p> Signup and view all the answers

    Which type of waste is derived from farming and poultry?

    <p>Agricultural waste</p> Signup and view all the answers

    Which method of waste disposal involves burning in a controlled manner using an incinerator?

    <p>Incineration</p> Signup and view all the answers

    What is the most effective way to reduce waste according to the Waste Management Hierarchy of Option?

    <p>Buying things for a long time</p> Signup and view all the answers

    Which of the following is NOT a method of waste disposal mentioned in the text?

    <p>Composting</p> Signup and view all the answers

    What is the main purpose of source reduction?

    <p>To reduce the amount or toxicity of what is thrown away</p> Signup and view all the answers

    Which of the following is NOT a type of waste mentioned in the text?

    <p>Household waste</p> Signup and view all the answers

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