Latihan Un IPA 2018 H

The increasing population in the city will lead to a higher demand for water resources. As the population grows, the consumption of water will increase, putting a strain on the availability of clean and fresh water. This will result in a decrease in the availability of clean water in the city in the next 10 years.

The correct answer is 1a-2b-3b-4a-7a. This is because the given sequence follows the pattern of alternating between "a" and "b" in the second digit, and the third digit remains the same. The fourth digit changes from "a" to "b", and the fifth digit changes from "a" to "b". Therefore, the correct sequence is 1a-2b-3b-4a-7a.

When the grass experiences drought and perishes, it will directly affect the population of mice. This is because mice primarily feed on grass and without it, their food source will diminish, leading to a decrease in their population.

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Tartrazin CI 19140 adalah bahan pewarna sintetis yang terdapat pada makanan tersebut.

The correct answer is 1R, 2-Q, 3-P, 4-S. This is the correct pairing between the products and microorganisms listed in the table.

The correct answer is 1 and 3. This means that the correct explanation would be that the red litmus paper changed color in solution 1 and solution 3, while the blue litmus paper also changed color in solution 1 and solution 3.

Berdasarkan gambar bimetal dan tabel koefisien muai panjang logam, tembaga dan besi adalah kombinasi yang tepat untuk bahan bimetal. Hal ini karena koefisien muai panjang tembaga dan besi memiliki perbedaan yang cukup besar, sehingga ketika dipanaskan, bimetal akan mengalami perubahan bentuk yang dapat dimanfaatkan dalam aplikasi seperti termometer atau sakelar suhu.

The correct answer is 1, 2, and 6. In the given image, we can see three animals that belong to the phylum Mollusca. Animal 1 is a snail, which is a common example of a mollusk. Animal 2 is an octopus, which is also a mollusk. Animal 6 is a clam, another type of mollusk. Therefore, the correct answer is 1, 2, and 6 as they all belong to the group of mollusks.

The correct answer is "otot bisep relaksasi dan otot trisep kontraksi, antagonis". This is because during the movement shown in the picture, the biceps muscle is relaxing while the triceps muscle is contracting. These two muscles have opposite actions and work as antagonists to produce the movement.

The correct answer is 3,5 grm/cm3. The student measured the density of the block, which is the mass of the block divided by its volume. The density of a substance is a characteristic property, so it remains the same regardless of the size or shape of the block. The student obtained a density of 3,5 grm/cm3, indicating that the mass of the block is 3,5 grams per cubic centimeter of volume.

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Pernyataan 2,4,6 menunjukkan bahwa pembuluh vena memiliki ciri-ciri yang terdapat pada pernyataan tersebut.

Based on the given table, food material O has a positive reaction to the test for starch and a negative reaction to the test for protein. This indicates that food material O is likely to be margarine. On the other hand, food material R has a negative reaction to the test for starch and a positive reaction to the test for protein. This suggests that food material R is most likely boiled egg white. Therefore, the correct answer is margarine and boiled egg white.

Planet nomor 1 adalah Saturnus. Saturnus memiliki cincin yang sangat indah yang terdiri dari partikel-partikel es dan debu yang mengelilingi planet ini. Cincin-cincin ini memberikan Saturnus penampilan yang unik dan membedakannya dari planet-planet lain dalam Tata Surya.

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When baking soda (NaHCO3) is added to the chemical glass, the process of photosynthesis in Hydrilla will speed up because the content of CO2 in the water increases. This is because baking soda releases CO2 when it reacts with water, providing more carbon dioxide for the Hydrilla to use in photosynthesis.

The speed of sound in water is given as 1,400 m/s. The time it takes for the sound to travel from the ship to the seabed P and back is 2 seconds. This means that the total distance traveled by the sound is 2 * 1,400 = 2,800 meters. Similarly, the time it takes for the sound to travel from the ship to the seabed Q and back is 1.5 seconds, resulting in a total distance of 1.5 * 1,400 = 2,100 meters. The difference in depth between P and Q can be calculated by subtracting the distance traveled by the sound to reach Q from the distance traveled to reach P, which is 2,800 - 2,100 = 700 meters. Therefore, the correct answer is 700 m.

The correct answer is 2/16. In the given cross, the genotype of the parent generation (F1) is Bbmm. When two individuals with this genotype are crossed, the possible genotypes of the offspring (F2) are BBmm, Bbmm, BbMm, and bbmm. Out of these four possibilities, only one genotype, bbmm, matches the given genotype Bbmm. Therefore, the probability of obtaining the desired genotype in the F2 generation is 1 out of 16.

The correct answer is D. The explanation for this answer is not available.

The correct answer is 800 Y because the scale on termometer Y is divided into 100 equal parts. Therefore, each part represents 6 degrees. So, when the temperature is 600 degrees, it will be represented as 100 parts on termometer Y. Thus, 800 Y represents a temperature of 600 degrees.

The correct answer is "I dan II". The question is asking for the images that represent "gerak lurus beraturan" (uniform linear motion) and "gerak lurus berubah beraturan dipercepat" (uniformly accelerated linear motion). The images that represent these types of motion are I and II.

The correct answer is "antibiosis, komensalisme, parasitisme, mutualisme." This is because the given relationships between living organisms can be categorized as follows:
1. Jamur Penicilium dengan bakteri - antibiosis (a relationship where one organism inhibits or destroys the other)
2. Anggrek dengan tumbuhan yang ditempati - komensalisme (a relationship where one organism benefits without causing harm or benefit to the other)
3. Benalu dengan tumbuhan inang - parasitisme (a relationship where one organism benefits at the expense of the other)
4. Bakteri Escheria C. di dalam usus manusia - mutualisme (a relationship where both organisms benefit from each other)

The correct answer is (2) dan (4). This is because when the steel bar is rubbed with a magnet, it becomes magnetized and creates a magnetic field. The compass needle aligns itself with the magnetic field lines and points towards the north pole of the magnet. In the given diagram, the compass needles in positions (2) and (4) are aligned with the magnetic field lines of the magnetized steel bar, indicating the correct positions.

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The correct answer is "disaring oleh rambut getar" which means "filtered by vibrating hair". The trachea is responsible for conducting air to and from the lungs. It is lined with tiny hair-like structures called cilia, which help to filter out dust, debris, and other particles from the inhaled air. These cilia move in a coordinated manner, creating a sweeping motion that moves mucus and trapped particles up and out of the airway, preventing them from reaching the lungs. This process helps to keep the respiratory system clean and free from potential irritants or pathogens.

The correct answer is 1, 2, and 3. This means that both the quantities and units in Si and the measuring instruments are correctly indicated in numbers 1, 2, and 3.

When the hanging rope is shifted 10 cm away from the load, the lever will become unbalanced. To restore the balance, the effort force applied to the lever needs to be increased. Therefore, the correct answer is 60N, as it represents an increased effort force that can counterbalance the shift in the hanging rope.

The correct answer is 1, 2, and 4. The question asks for the correct relationship between the place, the process, and the correct information shown in the table of urine formation in the kidneys. Option 1, 2, and 4 is the correct answer because it represents the correct relationship between the three elements.

The correct answer is 15 cm and 200 cm/s. This is because the question states that the data is a picture, suggesting that we can determine the amplitude and wave speed from the picture. The amplitude is given as 15 cm, which represents the maximum displacement of the wave from its equilibrium position. The wave speed is given as 200 cm/s, which represents the speed at which the wave propagates through the medium.

The correct answer is "nyata, terbalik, sama besar". When an object is placed 12 cm away from a convex lens and a real image is formed with a magnification of 2, it means that the image is formed on the opposite side of the lens, it is inverted, and its size is the same as the object. Shifting the object 4 cm further away from the lens will not change these characteristics of the image. Therefore, the new image formed will still be real, inverted, and have the same size as the object.

The correct answer is mononatrium glutamat and asam sorbat. Mononatrium glutamat is a flavor enhancer commonly used in processed foods to enhance the taste. Asam sorbat, on the other hand, is a synthetic preservative that helps to prevent the growth of bacteria and fungi, thus extending the shelf life of the food. Both of these ingredients serve different purposes in the composition of the packaged food.

The resonant frequency of a column of air is determined by the length of the column. In this question, the sound wave has a frequency of 170 Hz and the speed of sound in air is 340 m/s. To find the resonant length, we can use the formula v = fλ, where v is the speed of sound, f is the frequency, and λ is the wavelength. Rearranging the formula to solve for λ, we get λ = v/f. Plugging in the values, we get λ = 340/170 = 2 m. Since the length of the column is half the wavelength, the resonant length is 2/2 = 1 m = 100 cm. Therefore, the correct answer is 50 cm.

The voltage difference between points P and Q is 3.2 V.

When the charges on both objects are doubled, the force of attraction between them will also double according to Coulomb's law. Similarly, when the distance between the objects is halved, the force of attraction will quadruple. Therefore, the force of attraction between the two objects will be 2N x 4 = 8N.

When an object is placed in front of a mirror, a real and inverted image is formed. The magnification of the image is given as 2, which means that the image is twice the size of the object. When the object is moved 8 cm away from the mirror, the image formed will be real, inverted, and smaller in size. This is because as the object moves away from the mirror, the distance between the object and its image increases, resulting in a smaller image.

The part indicated by X in the cross-section of the plant stem is responsible for forming xylem and phloem. Xylem is a tissue that transports water and minerals from the roots to the rest of the plant, while phloem is responsible for transporting the products of photosynthesis, such as sugars, from the leaves to other parts of the plant. Therefore, the correct answer is that the part indicated by X functions in forming xylem and phloem.

The correct answer is "berkembang biak dan tumbuh" because the image shows two organisms, indicating reproduction, which is a characteristic of living things. Additionally, the image also shows the growth of the organisms, further supporting the answer.

One of the main causes of eutrophication is the excessive use of artificial fertilizers, which leads to an overgrowth of aquatic plants. These plants cover the surface of the water, preventing sunlight from reaching the bottom and inhibiting photosynthesis of underwater plants. By reducing the use of artificial fertilizers, the nutrient levels in the water can be controlled, preventing eutrophication and the death of aquatic organisms. Therefore, the answer "mengurangi penggunaan pupuk buatan" (reducing the use of artificial fertilizers) is the correct choice to prevent eutrophication.

The correct answer is C because it is the only option that provides characteristics of both elements and compounds.