1.
An area of salt water larger than a bay but not as large as an ocean 
Correct Answer
A. Gulf
Explanation
A gulf is an area of salt water larger than a bay but not as large as an ocean. It is typically partially enclosed by land and connected to a larger body of water. A gulf is larger than an inlet, basin, or harbor, and it is not a river.
2.
A small narrow opening in a shoreline through which water passes 
Correct Answer
D. Inlet
Explanation
An inlet is a small narrow opening in a shoreline through which water passes. It is typically a body of water that is connected to a larger body of water, such as a lake or ocean. Inlets are often found along coastlines and can provide sheltered areas for boats and ships. They can also be important habitats for marine life.
3.
The area along a body of water sometimes having a beach 
Correct Answer
D. Coastline
Explanation
The correct answer is coastline because a coastline refers to the area along a body of water, such as an ocean or a sea. It includes the land and the water's edge, which can sometimes have a beach. The other options, such as mouth of a river, delta, inlet, and harbor, are specific features or locations within a coastline.
4.
A stream river or glacier that joins another stream river or glacier 
Correct Answer
E. Tributary
Explanation
A tributary is a stream, river, or glacier that flows into another stream, river, or glacier. It is not the source or mouth of a river, nor is it a peninsula or delta. A tributary contributes water and sediment to the main river system, increasing its volume and carrying capacity.
5.
A body of water near a coast where ships can anchor safely 
Correct Answer
A. Harbor
Explanation
A harbor is a body of water near a coast where ships can anchor safely. It provides a protected area for ships to dock, load and unload cargo, and seek shelter from rough seas or storms. Harbors are usually constructed with breakwaters or piers to create a calm and secure environment for ships. They are essential for maritime trade and transportation, serving as important hubs for economic activities and connecting coastal regions with the rest of the world.
6.
The end of a river where it joins a larger body of water 
Correct Answer
C. Mouth of a river
Explanation
The end of a river where it joins a larger body of water is referred to as the mouth of a river. This is where the river's flow merges with the flow of a larger body of water, such as a sea or an ocean. The mouth of a river is typically characterized by a wider expanse of water and can often be a site of increased sediment deposition and ecological diversity.
7.
Where a river begins 
Correct Answer
B. Source of a river
Explanation
The source of a river refers to the point where it originates, typically in highlands or mountains. It is the starting point of a river's flow and marks the beginning of its journey. The source can be a spring, a glacier, or even a lake. From the source, the river gradually gains volume and strength as it flows downstream towards its mouth, which is where it empties into a larger body of water such as a bay or a delta.
8.
Part of a sea or lake that forms an indentation in the land but not as large as a gulf 
Correct Answer
A. Bay
Explanation
A bay is a part of a sea or lake that forms an indentation in the land but is not as large as a gulf. It is a body of water that is partially enclosed by land and has a wide opening to the ocean or a larger body of water. Bays are usually characterized by their calm waters and are often used as natural harbors. They can vary in size and shape, but they are generally smaller than gulfs.
9.
A body of water that flows downhill usually emptying into a larger body of water 
Correct Answer
D. River
Explanation
A river is a body of water that flows downhill, usually emptying into a larger body of water. It is a natural watercourse that carries water from higher elevations to lower elevations. Rivers are typically formed by the accumulation of water from various sources such as rainfall, melting snow, and underground springs. They play a crucial role in the water cycle and are important for the transportation of sediment, nutrients, and organisms. Rivers can vary in size and shape, and they are vital for supporting various ecosystems and human activities such as agriculture, transportation, and recreation.
10.
A very tall raised area on earth sometimes with spiky tops
Correct Answer
D. Mountain range
Explanation
A mountain range fits the description of a very tall raised area on earth with spiky tops. It is a series of mountains that are connected and form a long, continuous line. Plateau refers to a flat elevated area, coastline is the boundary between land and sea, butte is a smaller isolated hill with steep sides, and mesa is a flat-topped hill with steep sides. Therefore, mountain range is the most appropriate answer.
11.
A piece of land that is surrounded by water on three sides
Correct Answer
A. Peninsula
Explanation
A peninsula is a piece of land that is surrounded by water on three sides. It is connected to the mainland by a narrow strip of land. This geographical feature is often characterized by its protrusion into a body of water, creating multiple coastlines.
12.
A point of land extending or jutting out into a body of water from a coastline 
Correct Answer
D. Cape
Explanation
A cape is a point of land that extends or juts out into a body of water from a coastline. It is usually characterized by a narrow piece of land that extends into the water and is surrounded by water on three sides. Capes are often formed by erosion and can vary in size and shape. They are commonly found along coastlines and can be prominent landmarks or features of a coastal landscape.
13.
A sunken area of land into which a river and its tributaries sometimes drain 
Correct Answer
B. Basin
Explanation
A basin is a sunken area of land into which a river and its tributaries sometimes drain. It is a low-lying area that collects water from surrounding higher ground. Differing from a delta, which is formed by the deposition of sediment at a river mouth, a basin is a broader term that encompasses any landform where water collects and drains. A plateau is a flat elevated area, a bay is a body of water partially enclosed by land, and an inlet is a narrow body of water leading into a larger body of water.
14.
An area of flat or rolling land at a low elevation 
Correct Answer
E. Plain
Explanation
A plain is an area of flat or gently rolling land at a low elevation. It is characterized by its lack of significant changes in elevation and its open, expansive nature. Plains are often formed by the deposition of sediment over long periods of time, resulting in a relatively flat surface. They can be found in various parts of the world and are typically used for agriculture or grazing due to their fertile soil.
15.
A raised area of land with a very flat top 
Correct Answer
C. Plateau
Explanation
A plateau is a raised area of land with a very flat top. It is different from a plain because it has a higher elevation, and it is different from a mountain range because it has a flat top instead of peaks and valleys. A cape refers to a narrow piece of land that extends into a body of water, and it is not related to the description of a raised area of land with a flat top. Therefore, the correct answer is plateau.
16.
A special type of plateau with a rounded top 
Correct Answer
A. Butte
Explanation
A butte is a special type of plateau with a rounded top. It is a geological formation characterized by steep, vertical sides and a flat or slightly rounded summit. Buttes are typically smaller in size compared to mountains or mountain ranges. They are formed through erosion, where the surrounding softer rock is eroded away, leaving behind a solitary, isolated hill or mountain-like structure. Unlike a mountain range, which consists of a series of connected mountains, a butte stands alone. Similarly, a plateau is a flat-topped elevated landform, but a butte is a specific type of plateau with distinct characteristics.
17.
A deposit of sand and silt at the mouth of a river is
Correct Answer
B. Delta
Explanation
A deposit of sand and silt at the mouth of a river is called a delta. Deltas are formed when the river's velocity decreases as it reaches the ocean or a lake, causing it to deposit sediment. Over time, this sediment builds up and creates a triangular or fan-shaped landform. Deltas are often fertile areas and can support diverse ecosystems.