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
Yuki888 [10]
3 years ago
6

Briefly discuss the major threats to California's soil resources.

Biology
2 answers:
Iteru [2.4K]3 years ago
3 0

<u>Answer:</u>

The threats of California soil resources are soils, urban development

<u>Explanation:</u>

Native soils, unmodified by  human activity, are becoming  rare and we are losing the valuable  power they provide.  Soils in the Delta continue to subside.

Urban development has expanded into vast acres of prime farmland in California,  diminishing our capacity to produce sustainable food and fiber.Increased fire frequency will increase soil erosion, resulting in depletion of nutrients from the soil and polluting the surface waters that receive the runoff.

stealth61 [152]3 years ago
3 0

There are many threats to the soil resources in California some of them are Hydraulic mining, Forest fires, and Solar plant installation.

<u>EXPLANATION: </u>

  • Soil resources are said to be degraded when there is a decline in soil productivity.
  • This decline in soil productivity can be due to many factors.
  • The balance between the soil and the environment is usually disturbed by humans.
  • The first threat is the hydraulic mining in California disturbed natural soils.
  • Agriculture in California only depends on irrigation and the changes in water budgets largely affect the soil there.
  • Forest fires and its activities that are carried out to suppress fire causes soil erosion.
  • Also, the construction of solar and wind power facilities is disturbing the soil in deserts.
  • Thus, gradually California is reaching a point where undisturbed soil is rarely found.
You might be interested in
Why are some pathogenic bacteria able to make toxins?
Angelina_Jolie [31]
A pathogen is a microorganism that is able to cause disease in a plant, animal or insect. Pathogenicity is the ability to produce disease in a host organism. Microbes express their pathogenicity by means of their virulence, a term which refers to the degree of pathogenicity of the microbe. Hence, the determinants of virulence of a pathogen are any of its genetic or biochemical or structural features that enable it to produce disease in a host.

The relationship between a host and a pathogen is dynamic, since each modifies the activities and functions of the other. The outcome of such a relationship depends on the virulence of the pathogen and the relative degree of resistance or susceptibility of the host, due mainly to the effectiveness of the host defense mechanisms. Staphylococcus aureus, arguably the most prevalent pathogen of humans, may cause up to one third of all bacterial diseases ranging from boils and pimples to food poisoning, to septicemia and toxic shock. Electron micrograph from Visuals Unlimited, with permission.

The Underlying Mechanisms of Bacterial Pathogenicity

Two broad qualities of pathogenic bacteria underlie the means by which they cause disease:
1. Invasiveness is the ability to invade tissues. It encompasses mechanisms for colonization (adherence and initial multiplication), production of extracellular substances which facilitate invasion (invasins) and ability to bypass or overcome host defense mechanisms.

2. Toxigenesis is the ability to produce toxins. Bacteria may produce two types of toxins called exotoxins and endotoxins. Exotoxins are released from bacterial cells and may act at tissue sites removed from the site of bacterial growth. Endotoxins are cell-associated substance. (In a classic sense, the term endotoxin refers to the lipopolysaccharide component of the outer membrane of Gram-negative bacteria). However, endotoxins may be released from growing bacterial cells and cells that are lysed as a result of effective host defense (e.g. lysozyme) or the activities of certain antibiotics (e.g. penicillins and cephalosporins). Hence, bacterial toxins, both soluble and cell-associated, may be transported by blood and lymph and cause cytotoxic effects at tissue sites remote from the original point of invasion or growth. Some bacterial toxins may also act at the site of colonization and play a role in invasion. Acid-fast stain of Mycobacterium tuberculosis, the agent of tuberculosis (TB). The bacteria are the small pink-staining rods. More than one-third of the world population is infected. The organism has caused more human deaths than any other bacterium in the history of mankind. Although its ability to produce disease is multifactorial, it is not completely understood. American Society of Microbiology, with permission.
6 0
2 years ago
Describe and the explain the changes in blood lactic acid and concentration shown in the graph || guys someone please help i’m f
7nadin3 [17]
During the exercise period (10-15min) the blood lactic acid concentration increases to about 13.2 mmol/dL (same units as on graph) as the individual is having problems keeping up their aerobic respiration. After 15min, they stop exercising and the lactic acid concentration starts to return to normal as their body is able to take in enough oxygen and catches up with the excess lactic acid, metabolizing it into CO2 and H2O. The period between 15-20 min shows the fastest reduction in concentration.
3 0
2 years ago
Anyone know the answer?????
REY [17]

Answer:

birch

Explanation:

because they easily germinate hence early succession

5 0
3 years ago
Read 2 more answers
In what way are the humerus and the femur similar?
marta [7]

Answer:

D.

Both the femur and humerus bone have what's called 'spongy bone' inside them and hollow spaces full of yellow and red bone marrow. Additionally, both bones do not attach to the axial skeleton but rather attach to the pelvic or hip bones; while they are both strong bones, they are not made of only compact bone but are made of 'spongy bone' inside them. Lastly, they do not protect any organs but rather allow for movement. D, They both have hollow spaces filled with bone-generating cells, is the best answer in this case

Explanation:

5 0
3 years ago
In the water cycle shown below, which process is happening at step 3?
dexar [7]

Answer:

<h2>A. precipitation</h2>

Explanation:

because the after  evaporation and condensation

it rains which is precipitation

6 0
3 years ago
Read 2 more answers
Other questions:
  • Are skin and/or bone an organ?
    6·1 answer
  • 6
    5·1 answer
  • The cells that secrete the fibers in ground substance in both dense and loose connective tissue are known as
    6·1 answer
  • Scientists typically amplify multiple str fragments from an individual in a single pcr. explain how they are able to do that.
    12·1 answer
  • Describe how species are named scientifically
    5·2 answers
  • Which one is a chemotroph?
    5·2 answers
  • What are the three parts of an atoms
    6·1 answer
  • What best describes the role of molecular oxygen (O2) in cellular respiration? A. It is accepts electrons when reacting to form
    7·1 answer
  • What purpose of transportation? Where does it happen the cell
    11·2 answers
  • What kind of cell is this? *<br><br><br> Plant Cell<br> Animal Cell<br> Bacilli<br> or Cocci
    15·2 answers
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!