Which of these statements best explains why there are different star charts for the same location on Earth? (3 points)

Which of the following beach conditions would most likely indicate the presence of low-energy waves? (2 points)

Which type of wave results from a gently sloping coastal region? (2 points)

In the image below, which region is showing an abnormally high sea level? (2 points) Public Domain

Which of the following statements about surface waves is true? (2 points)

Tsunami waves flood coastal and inland areas and affect coastal life. Which of these properties of tsunami waves most contributes to the flooding? (4 points)

Anna filled completely four identical cups with different liquids. Three of the cups were filled with water from different locations on land and one cup was filled with ocean water. The liquid in the four cups was boiled completely. The table below shows the mass of salt obtained on boiling the liquids completely. Cup Mass of salt (in gram) 1 25 2 18 3 35 4 29 Into which of these cups did Anna most likely fill ocean water? (4 points)

Nick made the chart below to show the future impact of four energy production technologies on the environment. Name of energy production technology Ocean thermal Energy Wave power Tidal Power Current power Impact on environment Increase in severe weather conditions like hurricanes Marine life affected by noise pollution Destruction of animal habitats because of change in coastline Coastal areas damaged by construction of power plants For which of these energy production technologies did Nick write an incorrect future impact on the environment? (4 points)

Study the graph below. At what depth does the thermocline begin? (2 points) Public Domain

Technological advancement of the society causes energy crisis in different parts of the world. One group of scientists has developed a plan to set up tidal power plants in different parts of the world to reduce the energy crisis. Which of these statements best describes a drawback in the scientists’ plan? (4 points)