Guild Collab Marine Biology Unit 2 Quiz

Imagine you are a pilot flying an airplane. Why would the equator be significant to you?

• The equator is a line of longitude and it would be significant for determining the direction of my flight.

• The equator is a line of longitude and it would be significant for determining the distance of my flight.

• The equator is a line of latitude and it would be significant for determining the distance of my flight.

• The equator is a line of latitude and it would be significant for determining the direction of my flight.

Answer explanation

The correct answer is that the equator is a line of latitude and it is significant for determining the distance of a flight. Latitude lines like the equator help in calculating how far a plane has to travel, thus influencing the planning of fuel and time.

You are on a hiking trip and you have a compass and a map. The compass points in one direction and the map shows another. What is the difference between these two directions, known as magnetic and true north?

• Magnetic north is the direction a compass needle points, while true north is the direction towards the North Pole on the map.

• Magnetic north and true north are opposite directions.

• Magnetic north is the direction towards the North Pole on the map, while true north is the direction a compass needle points.

• Magnetic north and true north are the same direction.

Answer explanation

The question asks about the difference between magnetic north and true north. The correct answer explains that magnetic north is where the compass needle points, due to Earth's magnetic field. On the other hand, true north is the direction towards the North Pole, as presented on a map. These two concepts are essential for navigation, especially in outdoor activities like hiking.

John is learning navigation and he wants to know how many degrees are there on a compass that he uses. Can you help him?

• 360 degrees

• 720 degrees

• 180 degrees

• 90 degrees

Answer explanation

A compass is a circular tool used in navigation. It is divided into 360 degrees which represent the direction in which one is heading. Therefore, John's compass also has 360 degrees, not 720, 180, or 90 degrees.

Imagine you are lost in the wilderness at night. How can you determine your latitude using the North Star and the Horizon?

• By measuring the angle between the North Star and the Equator.

• By measuring the distance between the North Star and the Equator.

• By measuring the angle between the North Star and the Horizon.

• By measuring the distance between the North Star and the Horizon.

Answer explanation

The latitude can be determined by measuring the angle between the North Star (Polaris) and the horizon. This is because the North Star is relatively fixed in the northern celestial sphere, and its angle gives a direct measurement of one's latitude. Other options involving distance or equator are incorrect because the North Star's location is constant, and latitude is defined by angles, not distances.

A sailor is navigating his ship and needs to calculate the distance he has traveled. If he knows that he has moved one degree of latitude, how many nautical miles has he covered?

• The sailor has covered 120 nautical miles.

• The sailor has covered 30 nautical miles.

• The sailor has covered 90 nautical miles.

• The sailor has covered 60 nautical miles.

Answer explanation

The correct answer is that the sailor has covered 60 nautical miles. This is because one degree of latitude is approximately equivalent to 60 nautical miles. Therefore, if the sailor has moved one degree of latitude, he has traveled a distance of 60 nautical miles.

You are a sailor navigating a small island. Which type of map would provide the most accurate details for such a small area?

• Profile maps

• Contour maps

• Navigational maps

• Mercator maps

Answer explanation

Navigational maps are the most accurate for navigating small areas such as islands. Unlike other types of maps like Profile, Contour, or Mercator maps, Navigational maps provide detailed, accurate information needed for precise navigation in small areas. They are specifically designed to assist mariners in planning voyages and in navigating ships safely.

You are a geologist studying a mountain range. You have a profile map in front of you. Can you explain what this map represents and how you would read it?

• Profile maps show a top view of the mountain range and are read by following the latitude lines.

• Profile maps show a side view of the mountain range and are read by following the longitude lines.

• Profile maps show a side view of the mountain range and are read by following the contour lines.

• Profile maps show a top view of the mountain range and are read by following the contour lines.

Answer explanation

The question asks about the representation and interpretation of a profile map in geology. The correct explanation is that a profile map represents a side view of a mountain range and one reads it by following the contour lines. This option correctly specifies the perspective viewed (side view) and the lines followed (contour lines) when reading such maps.

You are a hiker trying to navigate through a mountain range. How would you read a profile map to guide your journey and why is it important?

• By following the contour lines on the map to determine the distance you need to travel.

• By following the contour lines on the map to understand the changes in elevation you will encounter.

• By following the latitude lines on the map to determine the distance you need to travel.

• By following the longitude lines on the map to determine the direction you need to go.

Answer explanation

The correct answer emphasizes the importance of contour lines on a map for a hiker. These lines show changes in elevation on a map, which can be critical when navigating through a mountain range. This knowledge enables a hiker to prepare for steep climbs or descents, thereby making their journey safer and more efficient.

Imagine you are a sailor navigating the seas. How would you use longitude lines and where would you find the Prime Meridian?

• As a sailor, I would use longitude lines for measuring direction and I would find the Prime Meridian at the North Pole.

• As a sailor, I would use longitude lines for measuring direction and I would find the Prime Meridian at the South Pole.

• As a sailor, I would use longitude lines for measuring distance and I would find the Prime Meridian at the North Pole.

• As a sailor, I would use longitude lines for measuring distance and I would find the Prime Meridian at the South Pole.

Answer explanation

Longitude lines, also known as meridians, are used by sailors for determining direction, not distance. These lines run from the North Pole to the South Pole. The Prime Meridian, which is the zero longitude line, is not located at the North Pole or South Pole. It runs through Greenwich, London. Therefore, the correct answer is the choice mentioning the use of longitude lines for direction and the location of the Prime Meridian.

You are a ship captain and need to navigate your ship through the ocean. Why would you use bathymetric maps?

• To show the elevation of land areas.

• To show the depth of the ocean floor.

• To show the topography of land areas.

• To show the location of cities and towns.

Answer explanation

Bathymetric maps are used primarily to understand the depth and shape of the ocean floor. They are essential for ship captains to plan routes as they provide information about underwater features and depth variations. This way, they help avoid hazards, making the option 'To show the depth of the ocean floor' the correct answer.