At which body of water does the Nile River end? the Atlantic Ocean the Red Sea the Mediterranean Sea Lake Victoria

In Botswana, the majority of people earn their living by working in diamond mines, which are the main contributors to the country's export income and provide substantial employment.

The majority of people in Botswana earn their living by working in diamond mines. Botswana's economy is heavily reliant on the mining sector, particularly diamond mining, which has been the principal extraction activity that dominates the country's export income. While there is also a significant presence of agriculture and livestock tending, as well as a growing construction sector, none of these surpass the economic impact of diamond mining. Additionally, Botswana has seen the rise of its service sector and has a tourism market benefitting from attractions such as the Kalahari Desert and game reserves. The stability provided by uninterrupted civilian political leadership and progressive social policies has fostered an environment where the mining industry thrives, and, as a result, it employs a significant portion of the workforce, contributing to Botswana’s position as having the second highest standard of living in the region after South Africa.

The apparent brightness is [tex]8.667\times{10^{-33}}{\text{ W/}}{{\text{m}}^{\text{2}}}[/tex]

Further Explanation:

The apparent brightness of a light source is measured by dividing luminosity with surface area of sphere with radius that is equal to the distance from source of light. The formula for calculating apparent brightness is:

[tex]F{\text{}}={\text{}}\dfrac{L}{{4{\text{}}\pi{\text{}}{d^2}}}{\text{ }}[/tex]

Where,

d:  the distance from source of light.

L: luminosity.

Calculate the apparent brightness:

[tex]\begin{aligned}F&=\dfrac{L}{{4\pi d^2}}}\\ &=\frac{{3.8\times1026{\text{watts}}}}{{4\pi{{\left( {{\text{189}}{\text{.2}}\times{\text{1}}{{\text{0}}^{15}}{\text{m}}}\right)}^2}}} \\&=\frac{{3898.8}}{{4.498\times{{10}^{35}}}}\\&=8.667\times{10^{-33}}{\text{ W/}}{{\text{m}}^{\text{2}}}\end{aligned}[/tex]

The apparent brightness is [tex]8.667\times{10^{-33}}{\text{ W/}}{{\text{m}}^{\text{2}}}[/tex]

Working Notes 1:  

Conversion of distance in light year to meters:

[tex]\begin{gathered}{\text{d}}=20\times{\text{9}}{\text{.46 }}\times {\text{1}}{{\text{0}}^{15}}\\=189{\text{.2}}\times{\text{1}}{{\text{0}}^{15}}{\text{m}}\end{gathered}[/tex]

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Answer details:

Grade: High School

Subject: Astronomy

Chapter: Luminosity

Keywords: Suppose a star has the same luminosity as our sun (3.8×1026watts) but is located at a distance of 20 light−, what is its apparent brightness.

The correct answer is - Marseille.

The port in question is Marseille. Since the forming of the settlement by Greek colonists its purpose has been to serve as strategically well positioned port, and this has remained the same as the centuries passed by, just that the importance of the Marseille port grew bigger and bigger over time. Nowadays it is by far the most important French port, one of the most important in Europe, and one of the most important in the world as well.

The Answer is:

Marseille

Answer:

The characteristic that is common to "all three groups of reptiles" is that they are all ectotherms.

Explanation:

Answer:

D

Explanation:

Sustainability is defined as the method of using a resource to ensure its long-term availability. So the correct option for 1 is A.

The term "sustainable development" initially originated in 1987 with the publishing of the Brundtland Report, which sought to find answers to the issues brought on by industrialization and population expansion and warned of the harmful environmental effects of economic growth and globalization.

Climate change, water shortages, inequality, and hunger are just a few of the issues that must be addressed on a global scale in order to be overcome. Sustainable development is an effort to combine social advancement with environmental balance and economic growth.

The Sustainable Development Goals, a call to action to conserve the environment and ensure human welfare on a global scale, were adopted by the United Nations as part of a new sustainable development blueprint known as the 2030 Agenda. Individuals, companies, government agencies, and nations from all over the world must actively participate in order to achieve these common goals.

Therefore the correct options are 2 - D, and 3 - B.

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Final answer:

Sustainability refers to using resources in a way that meets current needs without compromising future generations' ability to meet theirs. Conservation involves practices like recycling and solar power, and the Endangered Species Act is a law protecting endangered species. Both concepts emphasize the interconnectedness of humans and the environment.

Explanation:

Examples of renewable resources include sunlight and wind, which are not depleted when used, thereby providing a sustainable source of energy. Sustainable practices in resource use, such as harvesting wood and cork in a way that does not prevent future generations from meeting their needs, directly support the health of ecosystems—the benefits of which humans are intricately connected to.

Conservation efforts often include establishing protected areas to maintain biodiversity and provide opportunities to appreciate nature with minimal impact. These efforts form an integral part of a sustainable ethic, emphasizing the interconnectedness of humans and nature and the necessity to practice environmental stewardship to ensure long-term availability of resources.

From the given weather map- H denotes High pressure areas.

                                                - L denoted Low pressure areas.

A layer of gases known as the Earth's atmosphere envelops the globe. The atmosphere is continually being drawn toward the surface of Earth by gravity, despite it appearing as though these gases might just float away into space. A place on Earth experiences atmospheric pressure when our atmosphere pulls down on it with a certain amount of power.

The mass of the atmosphere at a given location and the air temperature are the two fundamental factors that affect atmospheric pressure. There is a lot of atmosphere above us and the weight is particularly heavy if we're at a low level, as in a valley. That indicates that the air pressure is higher at lower elevations and lower at higher elevations.

The atmosphere's water vapour may also alter atmospheric pressure. Huge amounts of water vapour in extremely humid air make it less dense and lighter than dry air. This is due to the fact that oxygen and nitrogen, the most prevalent gases in our atmosphere, are heavier than water molecules. Therefore, extremely dry air can result in high atmospheric pressure and very wet air can result in low atmospheric pressure.

A thick air mass that is often colder and drier than the surrounding air is known as a high pressure system. Less dense air masses that are often moister and warmer than the surrounding air make up low pressure systems.

Typically, regions with high atmospheric pressure also have good weather. Clouds and storms can arise as a result of low pressure systems. Normally, air moves from high-pressure zones to low-pressure zones.

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The correct labelling other the symbol on the weather map is attached under for understanding.

The description of these label on the map are as follows:

1. Cold front: Boundary where cold air displaces warm air, often bringing abrupt weather changes like storms and temperature drops.

2. Warm front: Boundary where warm air replaces cold air, typically causing gradual weather changes like prolonged rain and increasing temperatures.

3. Low pressure: Area with lower atmospheric pressure, often associated with unsettled weather, clouds, and precipitation.

4. 40-knot winds: Wind speed measurement indicating strong winds, likely causing rough seas and potential damage on land.

5. Overcast skies: Sky condition where clouds obscure most or all of the sunlight, often resulting in gray, gloomy conditions with possible precipitation.

6. High pressure: Area with higher atmospheric pressure, typically bringing stable weather conditions with clear skies and light winds.

Answer:

D) 50 square units

Explanation:

See attached

As per graph, given polygon is a square

Side of the square is:

Area of the square is:

Correct answer option is:

Answer:

D) 50 square units

The proximity of water was an advantage to Western Europe and its culture was able to flourish as a result.

Trade and travel by sea were easier and safer in historical times.

hope I helped:)

The set of products soil, water, air, and coal matches with natural resources; milk, flour, steak, and sweet corn with food; and cotton, sorghum, rice, and soybeans with agriculture. The variability in production possibilities across countries is influenced by labor, human capital, physical capital, and technology. Agricultural production depends on suitable natural resources and conditions.

To match the set of products or components to the related area of agribusiness:

Countries have different production possibilities due to various factors such as the quantity of labor, the quality of labor, which includes human capital, physical capital, and technology. For example, milk production requires certain natural resources like grasslands or fields for cattle grazing or growing hay or corn. Meanwhile, agriculture encompasses the method of growing crops and raising livestock to provide food and some raw materials. Countries need different combinations of these elements — land, labor, capital, and technology — to engage in agricultural activities that are most suitable for their unique environments.

The following factor which was a reason for the "Scramble for Africa" is the Industrial Revolution that increased the need for natural resources. Thus option (a) is correct.

The Industrial Revolution was a period when major economic, technological, and social change occurred. It was characterized by the transition from manual labor to machine-based manufacturing, which led to significant improvements in efficiency and productivity.

New machines and tools were invented to facilitate production, such as the steam engine and the power loom. These innovations led to an increase in factory production, lower costs of goods, and the growth of mass production.

The Industrial Revolution increased the need for natural resources was the reason for the "Scramble for Africa". Therefore, option (a) is correct.

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Answer:

principle of uniformity

Explanation:

Final answer:

During the Roaring Twenties, the U.S. presidency was held by Warren G. Harding, Calvin Coolidge, and Herbert Hoover, marking a period of Republican leadership focused on business support and isolation from foreign affairs.

Explanation:

The Roaring Twenties, a period of significant economic growth and cultural change in the United States, was presided over by several presidents. Among the options provided, Calvin Coolidge, Warren G. Harding, and Herbert Hoover were the men who held the office of President during the 1920s. Warren G. Harding served from 1921 until his death in 1923, at which point Calvin Coolidge took over the presidency, serving until 1929. Herbert Hoover then succeeded Coolidge, serving from 1929 to 1933, though his term is more remembered for the onset of the Great Depression rather than the prosperity of the Roaring Twenties.

Answer:

The answer is study Western ways of life and government.

Explanation:

Meiji reformers had a motto, Human advancement and Enlightenment. which typifies the objectives of their change, they needed to create a cutting edge Japanese country displayed after those in the Western world. Some portion of what they did in an offer to accomplish this was they sent hundreds of Japanese to the United States and Europe to study Western lifestyles and government.

an abundance of natural resources

Answer:

D

Believe when you put in D that means you trust Brainly.

The first agricultural species to be altered by genetic modification was the tomato. Thus the correct option is D.

The process of genetic modification means transporting a DNA fragment from one organism to another in order to alter the properties of a plant, animal, or microorganism.

In order to boost output and make crops disease-resistant, genetic modification is frequently utilized in agriculture. The use of genetically altered organisms poses a serious risk to human society on both a fatal and economic level because it enables scientists to choose one specific gene to implant.

A tomato that has had its genes altered through genetic engineering is referred to as a mutant tomato or a genetically modified tomato.

Therefore, option D is appropriate.

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On the spring equinox, New York State experiences roughly 12 hours of daylight and 12 hours of night.

On the spring equinox, every location on Earth, including New York State, experiences roughly 12 hours of daylight and 12 hours of night. This occurs on approximately March 21st and is due to the Earth's axial tilt, which is perpendicular to the line between the Earth and the Sun on this date. Hence, the circle of illumination cuts all latitudes in half, giving equal hours of day and night.

Interestingly, the actual day length on the spring equinox is slightly longer than 12 hours for all places on Earth. This is due to the way sunlight refracts in the Earth's atmosphere and the finite size of the solar disk.