Final answer:
The Gulf of Mexico's dead zone is primarily caused by high levels of nitrogen and phosphorus from fertilizer runoff, leading to eutrophication and hypoxic conditions harmful to marine life.
Explanation:
The Gulf of Mexico's "dead zone" is caused by high levels of nitrogen (N) and phosphorus (P) in the Mississippi River. These elements act as fertilizers in the water, promoting excessive algae growth. When the algae die, they are decomposed by aerobic bacteria, which consume vast amounts of oxygen from the water. This process, known as eutrophication, leads to low dissolved oxygen (DO) levels and creates a hypoxic or "dead" zone — an expansive area severely depleted of marine life. The prominent dead zone in the Gulf of Mexico has significant negative impacts on the fishing industry due to massive fish kills, affecting ecological balance and the economy along the Gulf Coast. The runoff primarily comes from farm fields in the Midwest and is washed down the Mississippi River into the Gulf.
How do members of different ethnic groups in West and Central Africa communicate?
A.) Sign language helps people of different ethnicities communicate.
B.) Members of different ethnic groups do not communicate.
C.) Those of different ethnic groups must find an interpreter.
D.) Most people of these regions have the ability to speak several languages.
Answer:
D.) Most people of these regions have the ability to speak several languages.
Explanation:
With 54 countries, African linguistic diversity is impressive. Currently, Africa has 2092 languages spoken, which is no less than 30% of the languages on the planet. In addition to the two thousand languages, there are another eight thousand dialects. Thus, multilingualism is the main characteristic of the continent. The presence of innumerable variants sharing the same living spaces end up providing unique and complex ways of seeing and interpreting the world.
Which statement about trade in the coastal countries of Africa is not true?
Trade is a recent development in coastal countries.
The imports of coastal countries exceed their exports.
Liberia exports iron ore.
Several coastal countries export cash crops.
Answer is: (A) Trade is a recent development in coastal countries.
Explanation: the statement above is not true about trade in the coastal countries of Africa this is because trade has existed for as long as the development of coastal countries. They acted as major ports and therefore they were vital for trading. On the other hand, all the other statements mentioned about the coastal countries of Africa are accurate.
The materials most commonly associated with earth failures are ______________. quartz clay minerals granite basalt
The hot spring deposits at mammoth hot springs, yellowstone national park, are travertine. what rock probably lies somewhere beneath the hot springs?
Travertine deposits at Mammoth Hot Springs are formed from the precipitation of calcium carbonate from mineral-rich water, indicating a likelihood of limestone being present beneath. This limestone formation process is common in hot spring environments.
The rock that probably lies beneath the travertine deposits at Mammoth Hot Springs in Yellowstone National Park is limestone.
This is because travertine is a type of limestone that forms from the precipitation of calcium carbonate from mineral-rich water, commonly seen in hot spring environments.
Limestone is a sedimentary rock made primarily of calcium carbonate, matching the process that results in travertine formation.
What are the large and small magellanic clouds, and the sagittarius and canis major dwarfs?
A system of measurement that uses multiples and sub-multiples of ten is known as a ___________ system of measurement.
Among the worst examples of military regimes in third world nations was
A wind that blows from the southwest across the indian ocean toward south asia from june through september is a _____.
What are the 2 different types of igneous rock tectures?
Which four of the following are often used as polling places.
1. A Public School
2. A Fire Station
3. A Police Station
4. A Local Hamburger Restaurant
5. A Public Library
which lists the outer planets in order from furthest to closet to the sun
Jupiter, Saturn, Uranus, Neptune. Ur welcome
Bedrock and sediment in a stream is most susceptible to erosion if it is:
ANSWER:
Bedrock and sediment is most susceptible to erosion if it is located in the turbulent part of the stream or the river.
EXPLANATION:
The turbulent part of the river is the one where the water velocity is high. This high water velocity carries away bedrock and sediment easily. The edge where the bedrock and sediment is located tends to be very steep. This steepness makes it easy for the high velocity of water to carry away the bedrock and sediment. This bedrock and sediment is also carried to greater distances because of the great speed of water.Identify what igneous rock is primarily dependent on for its chemical composition
How does Uranus’s axial tilt affect it’s seasons
Which earthquake severity scale varies from locality to locality for a single earthquake?
What forms when a river enters a large body of water?
Most Middle East countries are highly dependent on food from abroad
Describe the disaster at Chernobyl.
Answer:
the Chernobyl disaster; during a run-down to a lower power, a combination of operator error and xenon poisoning caused the reactor thermal power to fall to near-shutdown levels. The crew's resulting efforts to restore power placed the reactor in a highly unsafe configuration.
Explanation:
The diagram shows the global wind pattern in the lower atmosphere. What is the main factor that determines the global wind pattern? A) the directions of ocean currents B) uneven landforms on Earth’s surface C) Earth's yearly revolution round the Sun D) uneven heating of Earth's surface by the Sun
the answer is D) uneven heating of Earth's surface by the sun
Answer:
the answer is D) uneven heating of Earth's surface by the sun
Explanation:
Which of climate would not be found in Africa
The point inside the earth where an earthquake takes place is termed the ____.
The planet that most closely resembles earth's moon is
Tornadoes although erratic are always characterized by ______ pressure.
Which countries are known as the Baltic nations? Croatia Bosnia and Herzegovina Estonia Latvia Lithuania Romania
Answer: Your answer is Croatia Estonia and Lithuania.
name at least two factors that affect weather patterns around the world
In three activities, how can I change my daily habits to help the ecosystem?
Hot water from the tap often requires running cold water until we can get hot water. In most cases instead of preserving the cold water in the container to use later, we let it run down the drain and get wasted. This happens in kitchen sinks, bathroom sinks and showers. On a daily basis, a lot of liters of water is wasted this way.
2. Opt for reusable plastic bags :Bags end up in landfills or causing litter in the environment. The danger of plastic bags is that most of them don't decompose. Animals and birds digest this material and die. Another environmental hazard from plastic bags is increased pollution in rivers, streams and oceans. Therefore, a reusable plastic bag reduces the frequency of buying and disposing, protecting the environment.
3. Do not litter :Packages whether it is food packaging or packages for other products have a “don't litter” or “throw in a rubbish bin” message and recycling sign. Regardless of that, there is rubbish all over. Avoid littering and using save and recommended manner of disposing of garbage is very important.
What moon orbits jupiter and has an icy surface that is tectonically reworked?
The _______ era featured the longest periods with no life forms on earth.
Answer:Precambrian
hope this helps :3
Which ground rule for group work was broken in the following scenario? Jan came to the meeting just as Antonia and Finn were taking their seats. Finn and Jan presented the progress they had made on the project since the last meeting. Everyone engaged in the subsequent discussions, asking questions and offering ideas. Be punctual Meet deadlines Equal responsibility Respectful communication
Helium was discovered on earth years after it had been discovered on the sun.
a. True
b. False