SCI DIV EXAM

• Lithosphere


  The outermost solid shell of a rocky planet, including the crust and upper portion of the mantle
• Crust


  • Made up of SIMA and SIAL
• Distance of the epicenter from the station is 2250Km
• Philippines

  In the Pacific Ring of Fire
• Convergent Boundary


  Formed when the Philippine plate and Eurasian plate collide
• Divergent Boundary


  New crust is formed when the plates move away from each other
• Subduction


  The denser deep-sea plate moves under the continental plate
• Oceanic to oceanic convergence

  Could form mountain ranges
• Oceanic to continental convergence

  Could form island arc
• Transform boundary

  Earthquakes and tsunami possibly happen
• Continents were once joined in a small landmass called Pangea
• As energy increases

  Frequency increases but wavelength shortens
• Red


  Has the longest wavelength
• Antenna of the analog television is placed inside the house

  Pictures and sound quality deteriorate
• Ultraviolet (UV) radiation


  Causes sunburn and skin damage
• Inverted, enlarged, and real image


  Formed when the object is at a distance less than one focal length from the lens
• Convex lens


  Produces smaller and upright images only
• Virtual, upright, smaller than the object image


  Produced by a convex mirror
• Reflecting telescopes are typically chosen by astronomers for observing celestial bodies as they gather less light compared to lenses
• Electric motor

  • Uses magnets to create rotational motion
  • Converts electrical energy into a mechanical one
• Testosterone


  Responsible for increased skeletal and muscular growth
• Progesterone


  Thickens the uterus lining, preparing for pregnancy
• Prolactin

  Promotes the production of milk in mammals
• Hot weather

  Sweat glands produce fluid to lose heat thus decreasing the temperature
• Central nervous system

  Composes the brain and spinal cord
• Mutation is any change in the DNA sequence of a cell. Which of the following is NOT true about mutation?

  Mutation is not always harmful to any organism
• The oldest fossils are found at Layer C and Layer D is the youngest layer
• Darwinian Theory of biological evolution

  Organisms with favorable and beneficial characteristics survive and reproduce
• Failure to maintain the diversity of life will lead to extinctions of different life forms
• Temperature of a gas is directly related to its volume


  The volume of the balloon increases, making the density smaller, which lifts the balloon
• Pressure (P) and volume (V) at constant temperature


  The volume is inversely proportional to its pressure
• Balloon is squeezed

  The pressure of the gas inside the balloon increases
• Carbohydrates

  High in bread, pasta, grain
• Proteins


  Maintain a steady supply of amino acids
• Nucleic Acid


  Made of nucleotides and contains DNA
• The Law of Conservation of Mass states that mass is neither created nor destroyed in chemical reactions
• Crushing a solid into a powder

  Increases the reaction rate due to more surface area
• 2. The different types of seismic wave behave differently. Which of the following statements differentiate secondary wave from primary wave?

  B. Secondary wave moves up and down perpendicular to the wave's motion while primary wave moves back and forth.
• 39. The following statements describe the concentration of solution as a factor that affects the rate of reaction. Which among the given statements is NOT correct?

  C. When solid reactants are present in small pieces, reaction rates can decrease.
•  In terms of structure, what is the distinct difference between DNA and RNA? DNA is double stranded while RNA is single stranded.