Which statement does not describe a primary source? a. Some examples are letters, diaries, and photos. b. They are interpretations of past events, based on evidence and artifacts. c. They are created at the time of an event, or very soon after. d. They are first hand, or eyewitness accounts of an event.

Natural selection changes the genetic makeup of a population over time herbal choice takes place while a few variants in a populace out-reproduce different versions.

Being higher adapted to the surroundings, or 'fitter'. Presuming the health differences are at least partially due to genetic variations, this will purpose the population's genetic makeup to be altered through the years.

The herbal choice is a mechanism of evolution. Organisms that might be extra tailored to their environment are more likely to live to tell the tale and skip on the genes that aided their achievement. This system reasons species to exchange and diverge through the years.

Over time, these wonderful tendencies turn out to be greater, not unusual within the population. through this process of herbal selection, favorable tendencies are transmitted through generations. natural selection can cause speciation, wherein one species gives upward thrust to a new and incredibly distinctive species.

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Mid-ocean ridges cool and sink as they get more thick if there are more of them than there are subduction zones. As a result, the ocean basin's volume grows and the sea level falls.

As a result, the mid-oceanic ridge is the opposite of the subduction zone. Near the mid-oceanic ridges, new seabed is produced from the upper mantle, which then extends laterally outward before being subducted or eaten at the edges of ocean basins.

What part does the mid-ocean ridge play in the spread of the seafloor?

At the mid-oceanic ridge, where a divergent boundary is pushing two plates apart, the sea floor spreads as a result of the separation of the plates. New material wells up and cools onto the edge of the plates as they separate.

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Magma

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bellow is to fillup space

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Explanation:

In 2050, Spain will have the largest percentage of old people in the world. The problem that Spain has to face is that the working age people (15-54) will decrease and old people above 65 will increase and population pyramid will also change.

The North is a diverse region with strong rivers, plains covered in forest, "great" lakes that stretch from the Mackenzie Valley to the edge of the Canadian Shield, an inland sea (Hudson Bay), the beaches, bars, and islands of the arctic coast,

The Arctic Ocean, the North Atlantic Ocean, the Caribbean Sea, and the North Pacific Ocean all encircle North America's northern, eastern, and western borders.

Low-lying regions in the deep south are constantly hot and wet. The majority of the rest of North America experiences chilly winters and pleasant summers with just moderate amounts of precipitation. Depending on where you live, you may experience moderate winters and long, hot summers or brutal winters and brief summers.

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Maps can be made by projecting Earth's spherical grid onto a two-dimensional surface of a plane.

In a map projection, coordinates are expressed as the latitude and longitude, of locations on the surface of the globe, and are modified into coordinates on a plane. Projection is an important step in formulating a two-dimensional map and is one of the essential elements of cartography.

All projections of a sphere on a plane certainly distort the surface in some way and to some extent. Depending on the objective of the map, some alterations are acceptable and others are not; therefore, different map projections exist to maintain some properties of the sphere-like body at the price of other properties. The study of map projections is mainly about the characterization of their distortions. There is no end to the number of possible map projections. More generally, projections are used in several fields of pure mathematics, including differential geometry, projective geometry, and manifolds. However, the term "map projection" refers especially to a cartographic projection.

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Answer: Core a.k.a The very middle layer of the Earth

Explanation:

Layers of Earth; The crust, mantle, outer core, and inner core are the four principal layers that make up the Earth. The mantle is the thickest part of the planet, whereas the crust is the thinnest.

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Answer:

The day-to-day role of a town planner will vary by organisation and sector but here is a typical list of some of the key tasks you can expect to undertake: Researching and preparing planning proposals and policies. Writing reports and recommendations. Planning renewable energy generation sites such as wind farms.

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The measures of development that are used to classify countries are :

LIMITATIONS:

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A person B's blood sugar level at 3.5 hours would likely be 212.5 ml/L. Consumed food breaks down into glucose. It is because of this glucose that our bodies receive their energy. It moves to many body areas through our bloodstream.

Our blood sugar level is the quantity of glucose moving through our bodies. We determine this blood sugar level using a glucometer or a blood test. A body that is in good condition and maintenance will have normal blood sugar levels.

Each age group has its own normal blood sugar range. The same has been covered in this section. You can interpret your blood sugar level using these values everytime you check it.

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Answer:-

Studying geography gives a meaning and awareness to places and spaces.

Explanation:-

Geography can help us understand the planet's movement, changes, and systems. Topics that are relevant to today such as climate change, water availability, natural resources, and more are much easier understood by those who know geography well.

Answer: c and d

Explanation:

Answer:

Any line of longitude (a meridian) can serve as the 0° longitude line. However, there is an international agreement that the meridian that runs through Greenwich, England, is considered the official prime meridian.

Soil erosion is the process of removing top soil layer by geographical factors like water, wind.

One of the most common reason of soil erosion is water, like flooding it removes top spoil which makes it less fertile and prone to droughts. Vegetation loss is element in the process of soil erosion because the roots of the plants bind soil together forming a more solid mass that is less susceptible to both water and wind erosion. Thus, the removal of vegetation increases the rate of surface erosion.

South Africa's most valuable export is it's soil, because it produces tonnes of grains, fruits which are highly valuable in the market. 5 strategies which are suitable to prevent and control soil erosion are

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Explanation:

In the EU, climate change is the responsibility of the European Commission. The Commission is the EU's executive body, which proposes new laws and implements decisions.

What is climate change?
Long-term modifications to weather and temperature patterns are referred to as climate change. These changes might occur naturally, for instance through variations in the solar cycle. But since the 1800s, burning fossil fuels like coal, oil, and gas has been the primary cause of climate change, which is mostly attributable to human activity. By trapping the sun's heat and boosting temperatures, greenhouse gas emissions produced by burning fossil fuels behave as a blanket over the planet. Methane and carbon dioxide are two examples of the greenhouse gases that are contributing to climate change. These result from using fuels like gasoline or coal to heat buildings, respectively. Carbon dioxide can also be released during logging and clearing land.

In the EU, climate change is the responsibility of the European Commission. The Commission is the EU's executive body, which proposes new laws and implements decisions. The Commission is also responsible for negotiating international agreements on behalf of the EU. The European Parliament is the EU's law-making body. It is made up of 705 Members of the European Parliament (MEPs). The Parliament approves European Commission proposals with a simple majority. The Council of the European Union is the EU's main decision-making body. It is made up of representatives of the governments of the 27 EU countries. The Council adopts European laws. The Council also coordinates the work of the EU countries.

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Human beings from early times have been interacting with the environment and modifying it according to their needs. Early humans adapted themselves to their natural surroundings.

They led an easy life and fulfilled their requirements from the nature around them. But their needs kept on increasing. To fulfill these varied needs, humans learned to grow crops, and tame animals and commenced a settled life.

The wheel was invented, surplus food was produced, a barter system emerged, trade started and commerce developed. the technological revolution made possible large-scale production.

By and by transportation became faster. The information revolution made communication easier and speedy across the planet. In this way, human beings adapted to the environment to fulfill their needs.

Answer:

Maasai of Kenya and Tanzania.

Himba of northwest Namibia.

Zulu of South Africa.

b)briefly explain the significant cultural traits that make each

distinct.

A)It includes everything that makes them distinct from any other group of people for instance, their greeting habits, dressing, social norms and taboos, food, songs and dance patterns, rites of passages from birth, through marriage to death, traditional occupations, religious as well as philosophical beliefs.

1. The fact that both Chinese writing and English writing are used on top of the building shows that the picture is a part of the cultural landscape.

2. The term that can be used to refer to the structure is sequent occupancy.

         Cultural landscape refers to the landscape which has seen an amalgamation or symbiosis of various cultures and represents that mixture in culture. In the given picture, we find the eastern Chinese cultures and western English cultures mixing through the presence of both languages on the building.

         Sequent occupancy refers to the notion that a single landscape can be changed with its occupants over time and generation. The significance of the place changes with its owners. In the given picture, the building was built before the Chinese people lived there. But with time, the same building had been adapted to Chinese culture. Thus, it is sequent occupancy.

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The physical forces of nature and human forces modify the earth's surface by altering the relief of mountains, the course of rivers, among others.

The physical forces of nature modify the surface of the earth because they alter the order in which it was for a time. For example, landslides cause the Earth's surface to change its shapes.

On the other hand, earthquakes cause the earth to crack and sometimes drastic changes result, such as modification of the relief. Additionally, hurricanes and typhoons cause sea water to enter coastal areas, modifying the appearance of the earth's surface.

The human force modifies the surface of the earth in different ways. First of all, when a road is built, trees must be felled, the land flattened and other modifications made so that the road is in good condition and will not suffer later damage.

On the other hand, mining uses different methods to break rocks and extract minerals. In this case, the earth's surface would be modified with the use of dynamite. Finally, when a dam is built, the course of a river is modified to take advantage of the current to produce energy.

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The image of the building is part of the cultural landscape of the area because Both Chinese and English writing are used on the front of the building.

The term that explains how the significance of the building has changed as the neighborhood changed in Sequent Occupancy.

Sequent occupancy refers to how the culture of a certain area is a product of the cultures of those who have stayed in that area in the past and the cultures of those who currently stay in that area.

As a result, the significance of certain items will change as different cultures come and go. This is why the building's significance changed as Chinese culture became prevalent in Chinatown as the neighborhood changed.

Sequent Occupancy will however influenced the cultural landscape of an area because the symbols of the past and present cultures will be seen. This is why this building has both English writings from the past culture, and Chinese writings from the present culture.

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Three of the greatest ancient civilizations are known to have existed: the Mayans, Incas, and Aztecs.

They formed their own calendars, created extensive cities, developed sophisticated counting and writing systems, became skilled farmers and warriors, and built sophisticated highways.

What characteristics characterised the great civilizations of Mexico, Central America, and South America?

Each of these civilizations ruled over vast swaths of land and millions of people. They created sophisticated tools, built magnificent cities, devised sophisticated timekeeping, counting, and writing systems.

Southern North America and the majority of Central America make up the historical and cultural region known as Mesoamerica. It stretches through Belize, Guatemala, El Salvador, Honduras, Nicaragua, and northern Costa Rica, starting about in central Mexico.

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Answer:

Proactive approach

Proactive approach is often disregarded in postulating options by government and organizations everywhere. It is necessary for corporation to put in place, as properly as authorities to have catastrophe management departments to forecast such incidents.

Answer:

B, the myans were there first

Answer:

B

Explanation:

according to OPEC it's has the largest

British Weaknesses

Political issues:

Colonies were disorganized for war

Loyalists, neutrals, & patriots

Continental Congress provided little leadership

British Strengths

Military issues:

Brutal treatment of soldiers

Poor food (old & wormy)

Colonies were a large territory to occupy

Fighting 3,000 miles from home

Messages took weeks to be passed

Soldiers arrived sick & unready to fight

Explanation: