This topic contains a solution. Click here to go to the answer
« previous next »

Author Question: Which of the following statements regarding sea-level is false? A) Sea level is a convenient ... (Read 54 times)

dejastew

  • Hero Member
  • *****
  • Posts: 562
on: Jul 16, 2018
Which of the following statements regarding sea-level is false?
 
  A) Sea level is a convenient reference position because it is constant.
  B) The edges of continents submerged today were dry land at times in the past.
  C) Marine sedimentary rocks in present day continental interiors indicate times when continents were submerged.
  D) There is a connection between average lithosphere age and sea level.

Question 2

How do human activities affect soils?
 
  What will be an ideal response?


Related Topics

Need homework help now?

Ask unlimited questions for free

Ask a Question
Marked as best answer by a Subject Expert

parshano

  • Sr. Member
  • ****
  • Posts: 333
Reply #1 on: Jul 16, 2018
Answer to Question 1

Answer: A

Answer to Question 2

Answer: Plowing and cultivation disturb soil horizons. Agricultural activities may also reshape the land surface, which increases water runoff and decreases infiltration into the soil. Bare areas, rows of sown crops, and compacted land surfaces leave significant parts of the field exposed to water runoff and soil erosion. The loss of vegetation, especially during drought, promotes soil erosion by wind. Dry conditions and the lack of vegetation decrease soil moisture and enhance the ability of wind to pick up and move soil particles. Terracing steep slopes and planting parallel to contours diminishes water runoff. Planting continuous covers of vegetation and trees serves as a windbreak and helps retain soil moisture. Practicing no-till methods also decreases erosion by inhibiting water runoff and restores nutrients to the soil.


dejastew

  • Member
  • Posts: 562
Reply 2 on: Jul 16, 2018
Wow, this really help

Joy Chen

  • Member
  • Posts: 354
Reply 3 on: Yesterday
Great answer, keep it coming :)

« previous next »
 

Did you know?

Most childhood vaccines are 90–99% effective in preventing disease. Side effects are rarely serious.

Did you know?

Asthma occurs in one in 11 children and in one in 12 adults. African Americans and Latinos have a higher risk for developing asthma than other groups.

Did you know?

Less than one of every three adults with high LDL cholesterol has the condition under control. Only 48.1% with the condition are being treated for it.

Did you know?

Many of the drugs used by neuroscientists are derived from toxic plants and venomous animals (such as snakes, spiders, snails, and puffer fish).

Did you know?

Cyanide works by making the human body unable to use oxygen.

Variation in the level of multicellularity among volvocine algae Variation in the level of multicellularity among volvocine algae
Normal change in sea level Normal change in sea level
Rising sea level threatens coastal communities around the world Rising sea level threatens coastal communities around the world
Rising sea level: Some areas will be affected by a rise of just 40 cm Rising sea level: Some areas will be affected by a rise of just 40 cm
The developed countries must reduce the level of greenhouse gas emissions The developed countries must reduce the level of greenhouse gas emissions
E9-23 Prepare income statements Explain the difference in operating income E9-23 Prepare income statements Explain the difference in operating income
Video: Hypoglycemia Animation

For a complete list of videos, visit our video library