แบบทดสอบรายวิชาวิทยาศาสตร์ (ว32101) ม.2 (หน่วยที่3เรื่องดิน หิน แร่)

เพชรมีความแข็งมากที่สุด เพราะเพชรเป็นแร่ที่มีความแข็งแรงและทนทานมาก มีความหนาแน่นสูง และมีความต้านทานต่อการบิดงอและการกระแทกสูง ทำให้เพชรเป็นชนิดของแร่ที่มีความแข็งมากที่สุด

Granite is a popular type of stone used in construction due to its durability and aesthetic appeal. It is a natural stone that is formed from cooled magma, making it extremely hard and resistant to wear and tear. Granite is commonly used for countertops, flooring, and building facades because of its ability to withstand heavy use and its ability to resist stains and scratches. Additionally, granite comes in a wide range of colors and patterns, making it a versatile choice for various architectural styles.

Adding chemical fertilizers to the soil may provide immediate nutrients to plants, but it does not improve the overall quality of the soil in the long term. Chemical fertilizers can have negative effects on soil health, such as reducing microbial activity and depleting organic matter. In contrast, practices such as soil cultivation, cover cropping, and crop rotation can improve soil structure, increase organic matter content, and enhance nutrient cycling, making them more sustainable and beneficial for long-term soil health.

The correct answer is "หินอัคนี หินตะกอน หินแปร". This is the correct sequence of the occurrence of different types of rocks.

The correct answer is "แมกมา ลาวา หินอัคนี". This is the correct order of the occurrence of events because it follows the sequence of events in which "แมกมา" happens first, followed by "ลาวา", and finally "หินอัคนี".

Most plants thrive and grow well in soil with a pH range of 5 to 7. This pH range is considered slightly acidic to neutral, which provides the optimal conditions for nutrient availability and uptake by plants. Soil pH affects the solubility and availability of essential nutrients for plant growth. pH levels outside this range can limit nutrient availability and hinder plant growth. Therefore, a pH range of 5 to 7 is ideal for most plants to thrive and develop properly.

The correct answer is "พบซากพืชซากสัตว์ดึกดำบรรพ์ฝังอยู่" because it is the only statement that is not true. The other statements are all correct: there are iron designs, there are red-brown colors, and they are commonly used to make walls.

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The correct answer is "ความเป็นกรดของดินเกิดจากการเติมปูนขาวลงไปในดิน". This statement is incorrect because the acidity of soil is not caused by adding lime to the soil. Lime is actually used to neutralize acidic soil and increase its pH level. Therefore, adding lime to the soil would actually decrease its acidity, not increase it.

The correct answer states that if rocks undergo deep compression beneath the Earth's surface, they can transform into either schist or marble. This explanation aligns with the information provided in the passage, which mentions that rocks can undergo metamorphism and change into different types of rocks under intense pressure.

Soil at levels A and C allow water and air to pass through well.

Anthracite gives off the highest amount of heat energy when compared to other types of coal with the same mass.

The statement "ถ่านหินไม่จัดเป็นแร่" is incorrect. Charcoal is classified as a mineral because it is a naturally occurring substance with a definite chemical composition and crystal structure. Therefore, charcoal can be considered a type of mineral and is classified as such.

The correct answer is A and C. This means that if you want to choose soil for planting trees, you should choose soil that is deep (option A) and also soil that has a high level of depth (option C). Deep soil is important for trees as it allows their roots to grow and spread out properly. Additionally, soil with a high level of depth is beneficial because it can hold more water and nutrients, providing better conditions for tree growth.

The correct answer is D because the description states that the soil is fine-textured, light brown in color, and does not contain any small roots or animals.