1answer.
Ask question
Login Signup
Ask question
All categories
  • English
  • Mathematics
  • Social Studies
  • Business
  • History
  • Health
  • Geography
  • Biology
  • Physics
  • Chemistry
  • Computers and Technology
  • Arts
  • World Languages
  • Spanish
  • French
  • German
  • Advanced Placement (AP)
  • SAT
  • Medicine
  • Law
  • Engineering
Tresset [83]
3 years ago
6

Checkerboard Mesa, Zion NP, UT. Checkerboard Mesa gets its name from the intersection of sub-vertical fractures/joints with more

gently tilted layers. Knowing that these are lithified sand dunes. What sedimentary structure forms these tilted layers?a. cross-beds b. ripple marks c. mudcracks d. graded beds
Geography
1 answer:
bezimeni [28]3 years ago
3 0

Answer:

a. cross-beds

Explanation:

Lithified sand dunes are formed when marine, or in this case, aeolian sand dunes become compacted or hardened. Deposition of minerals on these hardened surfaces creates layers on inclined surfaces. These layers get stacked over time, which creates interesting patterns and, as this stacking occurs on tilted surfaces, they form cross patterns. This entire process is called cross-bedding.

Ripple marks are almost uniform patterns usually forming in one direction and plane, which cannot form cross-patterns.

Mud cracks form when a muddy sediment dries up, leaving  almost hexagonal cracks behind, a very different type of pattern.

Graded beds are the systematic change in grain size, usually arranging with coarses sediments at the base, and progressively finer grains at the surface. This also cannot form cross patterns.

You might be interested in
Ecotourism has helped the environment in some cases by encouraging its preservation, but hurt it in others by encouraging rapid
stira [4]
Hello! i would say this is true based on what i have learned. hope that helps!
3 0
2 years ago
This city, now the county seat of Jefferson County, was Georgia's third capital from 1796-1807.
a_sh-v [17]
Your answer is B) Louisville
3 0
2 years ago
Cities can become segregated when older areas decline and wealthy citizens flee decaying neighborhoods.
Aleonysh [2.5K]

Answer:

true

Explanation:

6 0
3 years ago
Read 2 more answers
Mention and explain five causes of climate change ​
mixer [17]

Answer:

Cause #1: Variations in the Sun's Intensity

The Earth receives its warmth from the sun, so it's reasonable to suspect that our home star may be one of the reasons for global warming. Although the amount of energy coming from the sun does vary and may have been responsible for warming in the past, however, NASA and the Intergovernmental Panel on Climate Change (IPCC) have ruled this out as a cause of the current warming trend. The average energy coming from the sun generally has remained constant since 1750, and the warming does not occur uniformly throughout the atmosphere. The upper layer is actually cooling as the bottom layer becomes warmer.

Cause #2: Industrial Activity

Since the Industrial Revolution, humans have been burning fossil fuels such as coal and petroleum for energy, which releases carbon dioxide into the atmosphere. A quarter of this is for heat and electricity, while another quarter is for other industrial processes and transportation, which includes gasoline- or diesel-powered cars, trucks, trains and airplanes. The other half of the energy is used for various other purposes, including agriculture, cement production and oil and gas production. These processes also release other greenhouse gases, such as methane and CFCs, although the concentration of CFCs has declined since their use was banned in 1988.

Cause #3: Agricultural Activity

The agricultural practices that produce food for the people on earth is another of the human causes of climate change. The use of both commercial and organic fertilizers releases nitrous oxide, a powerful greenhouse gas. Methane, another important greenhouse gas, comes from many natural sources, but also from the digestive systems of livestock raised for meat production as well as the decomposition of waste in landfills and the burning of biomass.

Cause #4: Deforestation

The increased demand for meat and dairy cattle has lead to the creation of feed lots in otherwise forested areas. Logging for wood and paper and clearing for crop production also requires trees to be cut, sometimes illegally. One mature tree absorbs as much as 48 pounds of carbon dioxide each year, and by one estimate, 3.5 to 7 billion are cut every year. According to Scientific American, deforestation is responsible for 15 percent of the greenhouse gases in the atmosphere.

Cause #5: Earth's Own Feedback Loop

As the atmosphere warms, it is able to hold more water, which is already the most abundant greenhouse gas. This creates a feedback loop that accelerates global warming. It also creates more clouds, rainstorms and other symptoms of climate change. At the poles, the warming of the atmosphere melts the ice cover, exposing water, which is less reflective than ice. The water absorbs the sun's heat, and the oceans also become warmer as a result.

Explanation:

hope this helps you should reword a little just in case;)

-Ryleigh

8 0
2 years ago
What is the difference between a cobble-sized piece of colluvium found on slopes and a cobble-sized piece of alluvium found alon
kramer

Answer:

Their composition

Explanation:

Colluvium deposits will contain cobble sized deposits ranging from sand to rocks of different types while the alluvium deposits are uniform deposits of cobble sized sand

6 0
2 years ago
Other questions:
  • What is cartography?
    6·2 answers
  • If you accidentally measure 10 ml of a seawater sample instead of 5 ml but did not realize your error, would you still get appro
    14·1 answer
  • Which of the following rock types can melt within the earth and later cool into an igneous rock?
    12·1 answer
  • <img src="https://tex.z-dn.net/?f=%20%5Cfrac%7B%20%7B20k%7D%5E%7B2%7D%20%7D%7B39h%7D%20%20%5Cdiv%20%20%5Cfrac%7B2k%7D%7B3h%7D%20
    11·1 answer
  • The population of Greater Jakarta, Indonesia, grew from less than 4 million in 1970 to about _____ in 2000.
    12·1 answer
  • What does sustainable exploitation mean
    11·2 answers
  • Compared to the rest of the planet, an unusually high concentration of hot spots and rifting is located on the continent of afri
    11·1 answer
  • Turkey is in the northern part of the region known as the Middle East.
    8·2 answers
  • What's the difference between Ethnocentrism and Cultural Relativism.
    11·1 answer
  • Explain how waterfalls released from dams can hep generate electricity
    11·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!