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Terlalu banyak gas rumah kaca di atmosfir dapat menyebabkan pemanasan global. Hal ini terjadi karena gas rumah kaca seperti karbon dioksida menahan panas dari matahari di dekat permukaan Bumi, sehingga suhu Bumi meningkat secara keseluruhan. Peningkatan suhu ini dapat menyebabkan perubahan iklim yang drastis, seperti pencairan es di kutub, naiknya permukaan air laut, perubahan pola cuaca ekstrem, dan ancaman bagi kehidupan manusia dan ekosistem Bumi secara keseluruhan.

The correct answer is "merkurius, venus, bumi dan mars." This is because these four celestial bodies are all considered planets in our solar system. Mercury, Venus, Earth, and Mars are the four innermost planets and are often referred to as the terrestrial planets. They are all rocky planets with solid surfaces, unlike the gas giants that are found further out in the solar system.

Jamur berperan sebagai pengurai dalam jaring-jaring makanan. Pengurai adalah organisme yang memecah bahan organik mati menjadi zat-zat sederhana, sehingga dapat digunakan kembali oleh produsen dalam siklus nutrisi. Jamur melakukan dekomposisi bahan organik mati seperti daun yang gugur atau kayu yang membusuk, menguraikan bahan tersebut menjadi nutrisi yang dapat diserap oleh tumbuhan. Dengan demikian, jamur berperan penting dalam menjaga keseimbangan ekosistem dan mengubah materi organik yang tidak terpakai menjadi nutrisi yang berguna bagi organisme lain.

Jika populasi ular menurun karena diburu oleh para pengrajin kulit ular, maka jumlah tikus dan katak akan bertambah dalam jaring-jaring makanan tersebut. Karena ular merupakan predator alami tikus dan katak, penurunan populasi ular akan mengurangi tekanan predasi pada tikus dan katak. Akibatnya, populasi tikus dan katak akan cenderung meningkat.

Tumbuhan air dalam akuarium dapat memberikan manfaat suplai oksigen bagi komponen biotik yang ada di dalamnya. Tumbuhan air melakukan fotosintesis, di mana mereka menggunakan sinar matahari dan karbon dioksida untuk menghasilkan oksigen. Oksigen yang dihasilkan oleh tumbuhan air ini akan larut dalam air akuarium dan digunakan oleh organisme lain seperti ikan dan invertebrata air untuk bernapas. Dengan adanya tumbuhan air, suplai oksigen dalam akuarium dapat terjaga, memastikan kelangsungan hidup organisme-organisme tersebut.

The correct answer is "selubung udara yang menyelimuti bumi". This is because the term "atmosfer" refers to the layer of air that surrounds the Earth. It is composed of various gases and extends from the Earth's surface to outer space. It plays a crucial role in regulating the Earth's climate and supporting life by providing oxygen, trapping heat, and protecting against harmful radiation.

The correct answer suggests that the increasing number of housing developments leads to a decrease in the amount of water absorbed by the soil. This can be attributed to the fact that the construction of houses involves the clearing of land and the laying of impermeable surfaces such as concrete, reducing the ability of the soil to absorb water. As a result, during the rainy season, there is less infiltration of water into the ground, leading to an increase in surface runoff and the occurrence of floods.

The correct answer is "emisi gas CO2 hasil dari pembakaran bahan bakar fosil" because research has shown that the main cause of global warming is the emission of CO2 gas from burning fossil fuels. Fossil fuels such as coal, oil, and natural gas release large amounts of CO2 when they are burned for energy production, transportation, and industrial processes. This CO2 then traps heat in the atmosphere, leading to the greenhouse effect and global warming. Other factors mentioned in the options, such as deforestation, chemical use in agriculture, and nuclear power, may contribute to environmental issues but are not the primary cause of global warming.

The correct answer is "Sel - jaringan - organ - sistem organ - organisme." This is the correct sequence of organization in living organisms, starting from the smallest unit, which is the cell, followed by tissues, organs, organ systems, and finally, the whole organism.

Sungai yang tercemar umumnya memiliki ciri-ciri seperti terdapat berbagai jenis fauna, airnya beraroma busuk, dan PH air di atas 8. Namun, airnya jernih dan tidak berwarna tidak termasuk dalam ciri-ciri sungai yang tercemar.

The correct answer is "Sistem pernapasan, sistem pencernaan, dan sistem peredaran darah." This answer is correct because it lists three organ systems that are found in animals: the respiratory system, the digestive system, and the circulatory system. The respiratory system is responsible for taking in oxygen and removing carbon dioxide, the digestive system is responsible for breaking down food and absorbing nutrients, and the circulatory system is responsible for transporting oxygen, nutrients, and waste products throughout the body.

Membangun cerobong asap yang tinggi adalah usaha yang dapat dilakukan untuk menanggulangi pencemaran udara. Dengan membangun cerobong asap yang tinggi, asap dan polutan yang dihasilkan dari pembakaran bahan bakar atau industri akan tersebar lebih tinggi ke udara. Hal ini akan mengurangi risiko pencemaran udara di permukaan tanah dan meminimalkan dampak negatifnya terhadap kualitas udara yang kita hirup.

To reduce global warming, it is important to monitor and control the emissions of greenhouse gases from motor vehicles. This can be done by regularly checking the emissions of motor vehicles and implementing measures to reduce them, such as using cleaner fuels, promoting the use of electric vehicles, and implementing stricter emission standards. By doing so, we can reduce the amount of greenhouse gases released into the atmosphere, which will help mitigate global warming.

Bioremediation is the process of using microorganisms to break down or neutralize pollutants in the environment. In the case of oil spills in the ocean, bioremediation can be used to accelerate the natural degradation of the oil by introducing bacteria or other organisms that feed on the oil. This helps to minimize the impact of the oil spill on marine life and restore the health of the affected ecosystem. Therefore, performing bioremediation is the appropriate action to address oil pollution in the ocean.

Epithelial tissue is a type of tissue that lines and covers the surfaces of organs and body cavities. It serves as a protective barrier, preventing the entry of harmful substances and pathogens into the body. Epithelial tissue also plays a role in absorption, secretion, and sensory perception. Therefore, it is the correct answer as it accurately describes the function of the tissue mentioned in the question.

The correct answer is "keberadaannya tidak merugikan" because it states that the presence of the pollutant does not cause harm. The other options mention characteristics of pollutants such as exceeding normal limits, being present at inappropriate times, and being in the wrong place, which are all considered negative and harmful.

The correct answer is hiposentrum. The term hiposentrum refers to the point within the Earth's crust where an earthquake originates. In this case, the image shows the spread of seismic waves from a seismic center located 1,500 km away from a seismic station. The hiposentrum is the point of origin for the earthquake, making it the most appropriate answer.

The main impact of global warming is the increase in average global temperature. This is caused by the accumulation of greenhouse gases in the atmosphere, which trap heat from the sun and prevent it from escaping back into space. As a result, the Earth's temperature rises, leading to various consequences such as melting ice caps, rising sea levels, extreme weather events, and disruptions to ecosystems.

When the moon is in penumbra, it means that it is partially blocking the sunlight from reaching certain parts of the Earth. Therefore, the correct answer is "matahari sebagian" which means partial sunlight.

The correct answer is "siaga" because the question states that if a volcano shows an increase in activity and can be followed by an eruption, the level of early warning related to the volcano's activity is "siaga." This suggests that "siaga" is the appropriate level of alertness or preparedness in response to the volcano's increased activity.

The correct answer is "di bagian dasar piramidanya lebih panjang dibanding bagian atasnya." This means that the base of the population pyramid is wider than the top, indicating a larger population in the younger age groups. This suggests that Indonesia has a young population with a higher proportion of young people compared to older individuals.

In a pond ecosystem, the correct order of the food chain can be determined based on the given components. The food chain starts with organic matter (zat-zat organik) being consumed by phytoplankton (fitoplankton). Next, the herbivorous fish (ikan herbivor) feed on the phytoplankton. The carnivorous fish (ikan karnivor) then prey on the herbivorous fish. Finally, the decomposer bacteria (bakteri pengurai) break down the remains of the carnivorous fish and other organic matter. Therefore, the correct order for the food chain is 5-3-4-1-2.

The correct answer is troposfer. The explanation is that the troposfer is the lowest layer of the Earth's atmosphere where weather phenomena occur, including clouds, rain, and wind. It is the layer closest to the Earth's surface and extends up to about 10-15 kilometers. The other options, stratosfer, mesosfer, and termosfer, are higher layers of the atmosphere and do not directly involve weather and climate processes.

The correct answer is 2, 3, and 4. This is because these statements align with the criteria for environmentally friendly technology. Statement 2, "Mendaur ulang lebih banyak produk dan limbahnya" means recycling more products and waste, which is a sustainable practice. Statement 3, "Menggunakan sumberdaya secara berkelanjutan" means using resources sustainably, which is an important aspect of environmental friendliness. Statement 4, "Mengurangi daya polutannya" means reducing pollution, which is another key factor in environmentally friendly technology. Therefore, these three statements correctly represent the criteria for environmentally friendly technology.

The correct answer is kromosfer. The kromosfer is a layer of the sun's atmosphere that appears as a red ring surrounding the moon during a solar eclipse. It is located above the photosphere, the visible surface of the sun, and below the corona, the outermost layer of the sun's atmosphere. The kromosfer is known for its reddish color, which is caused by the emission of hydrogen alpha spectral line.

The statement "asap hasil pembakaran motor dapat membentuk lapisan ozon di troposfer" is incorrect because motor exhaust does not contribute to the formation of ozone in the troposphere. Ozone in the troposphere is mainly formed through chemical reactions involving pollutants such as nitrogen oxides and volatile organic compounds in the presence of sunlight. Motor exhaust, on the other hand, primarily releases pollutants such as carbon monoxide, nitrogen oxides, and particulate matter, which can contribute to air pollution but not ozone formation in the troposphere.

The correct answer is 3, 5, 6, 7, 9. These events represent physical changes because they involve changes in the physical properties of substances without forming new substances. For example, the rusting of iron (event 2) and the melting of wax (event 7) are physical changes as they only involve changes in the state or appearance of the substances involved. Similarly, the melting of ice (event 5), the strong aroma of perfume (event 6), and the quick cooling of hot water (event 9) are also physical changes.

Planet nomor 1 memiliki ciri berupa cincin yang tampak indah.

Pernyataan nomor 1 dan 4 merupakan akibat rotasi bumi. Gerak semu harian Matahari (pernyataan nomor 1) terjadi karena Bumi berputar pada sumbunya, sehingga terlihat seperti Matahari bergerak dari timur ke barat setiap harinya. Perbedaan waktu (pernyataan nomor 4) juga merupakan akibat rotasi Bumi, karena saat Bumi berputar, terdapat perbedaan waktu antara tempat-tempat yang berada di zona waktu yang berbeda.

The correct answer is "membran plasma, sitoplasma, dan inti sel". This is because in both plant and animal cells, the outermost layer is the plasma membrane, followed by the cytoplasm, and then the nucleus. The plasma membrane acts as a barrier, controlling the movement of substances in and out of the cell. The cytoplasm is a gel-like substance that contains various organelles and is the site of many cellular processes. The nucleus is the control center of the cell, containing the genetic material and regulating cell activities.

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The correct answer is "filtrasi". Filtrasi is a separation technique used to separate solid particles from a liquid or gas by passing the mixture through a filter. In this method, the mixture is heated to a temperature between the boiling points of the desired substance. The desired substance will evaporate, and the vapor is passed through a condenser. The condensed vapor is then collected in a container. This method is suitable for separating mixtures where the desired substance is in liquid form.

The correct answer is 1. The image shows different layers of the atmosphere, and the stratosphere is indicated by number 1. The stratosphere is the second layer of the Earth's atmosphere, located above the troposphere and below the mesosphere. It contains the ozone layer, which plays a crucial role in protecting the Earth from harmful ultraviolet radiation.

The correct answer is ribosom. The question is asking for a structure that is found in animal cells but not in plant cells. Ribosomes are cellular structures involved in protein synthesis and are found in all cells, including animal cells. However, plant cells have an additional structure called a cell wall that is not found in animal cells. Therefore, ribosomes are the correct answer as they are found in animal cells but not in plant cells.

The correct answer is 3. Based on the given table, the symbiosis between the buffalo and the starling is a mutualistic symbiosis. In mutualistic symbiosis, both species involved benefit from the interaction. Therefore, the buffalo and the starling have a mutualistic relationship where they both gain advantages from each other.