Geography High School

Karst topography is formed primarily by
A) oxidation and hydrolysis.
B) mass wasting processes.
C) exfoliation and hydration.
D) carbonic acid solution.

Answers

Answer 1

Karst topography is primarily formed by carbonic acid solution.

Karst topography refers to a unique landscape characterized by sinkholes, caves, underground drainage systems, and disappearing streams. It is primarily formed through the process of carbonic acid solution. Carbonic acid is a weak acid formed when carbon dioxide (CO2) dissolves in water, creating a mildly acidic solution.

In karst regions, water containing carbon dioxide percolates through soluble rock formations, such as limestone or dolomite. Over time, the carbonic acid in the water chemically reacts with the rock, dissolving it and creating voids and cavities. As the rocks continues to dissolve, sinkholes, underground channels, and cave systems are formed.  This process highlights the significance of water and its interaction with soluble rocks in shaping karst topography.

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Related Questions

an area of the ocean where rapid change in ocean density occurs with a change in depth is the:

Answers

The thermocline and its dynamics is essential for studying oceanography, climate patterns, and the behavior of marine life.

What is the term for the area in the ocean where rapid changes in density occur with a change in depth?

The area of the ocean where rapid change in ocean density occurs with a change in depth is known as the "thermocline."

The thermocline is a layer in the ocean characterized by a rapid decrease in temperature with increasing depth. It is usually found between the warmer surface waters and the colder deep waters.

The temperature change within the thermocline can be quite significant, often dropping by several degrees Celsius per meter of depth.

The thermocline is associated with changes in water density. As water cools, it becomes denser, and as it warms, it becomes less dense.

The temperature gradient across the thermocline results in a rapid change in water density, creating a distinct boundary between the warm surface layer and the colder, denser deep layer.

This density difference within the thermocline plays a vital role in ocean circulation and vertical mixing of water masses.

It affects the distribution of heat and nutrients in the ocean, influencing the movement of currents and marine ecosystems. The thermocline also acts as a barrier, limiting the exchange of heat and nutrients between the surface and deeper waters.

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Which of the four observatories you explored had the worst light pollution? Mauna Kea Kitt Peak National Observatory McDonald Observatory Griffith

Answers

Griffith Observatory is typically known to have significant light pollution due to its location in Los Angeles, California, which is a highly populated urban area.

Which observatory among Mauna Kea, Kitt Peak National Observatory, McDonald Observatory, and Griffith Observatory typically experiences the worst light pollution?

Of the four observatories mentioned, Griffith Observatory is typically considered to have the worst light pollution.

Explanation: Light pollution refers to the excessive or misdirected artificial light that hinders the observation of celestial objects in the night sky.

While all the mentioned observatories are located in areas known for astronomical research, the Griffith Observatory, situated in Los Angeles, California, faces challenges due to its proximity to a highly populated urban area with significant light pollution.

The bright lights from the surrounding city can interfere with stargazing and limit the observatory's ability to capture clear astronomical images.

On the other hand, Mauna Kea, Kitt Peak National Observatory, and McDonald Observatory are located in relatively remote and less light-polluted areas, providing better conditions for astronomical observations.

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some astronomers searching for what the mysterious "dark matter" might be made of have pinned their hopes on macho’s (massive compact halo objects). what do they think these macho’s are?

Answers

In the context of dark matter research, MACHOs (Massive Compact Halo Objects) are hypothetical astronomical objects that have been proposed as a possible explanation for dark matter.

What is MACHO?

Astronomers looking at MACHO as a possible solution suggest that these objects may consist of ordinary matter in the form of non-luminous compact bodies.

Examples of MACHO are celestial bodies such as black holes, brown dwarfs, or giant planets that do not emit enough light or radiation to be easily detected using conventional observational methods. These objects are distributed in the galactic halo, the region around the galaxy, and their gravitational effects may be responsible for the observed gravitational lensing and other indirect evidence of dark matter.

It is important to note that MACHO is only one of the proposed dark matter candidates, and its existence and contribution to the total dark matter mass of the universe are still unknown. Other candidates, such as Weakly Interacting Massive Particles (WIMPs), are also being studied by scientists to better understand the nature of dark matter.  

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++
-10 -9 -8 -7 -6 -5 -4 -3 -2 -1 0 1
Use the horizontal number line shown to answer the
question.
Which statements are true? Check all that apply.
-9<-7
-6=6
O-1-3
0<-3

Answers

Answer:

None of the statements are true.

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