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Practice Assignment: 9 | Class 6 BBC Compacta Solutions PDF Download

1.
Ans: My best friend is Anna, a sprightly 25-year-old with a cherubic face and cascading chestnut hair that frames her animated expressions. Her eyes, a vibrant green, are often alight with mirth, mirroring her vivacious character. Anna's resilience is like steel wrapped in velvet, her compassion deep and her laughter infectious.
A creature of habit, Anna begins each day with a brisk run at dawn, claiming it ignites her energy for the day. Her routine is punctuated by her work as a graphic designer, her afternoons volunteering at the animal shelter, and evenings spent mastering the art of Italian cuisine, her latest pursuit.
In social spheres, Anna's reputation is that of a reliable confidante and an unwavering supporter, which has earned her a wide circle of friends who genuinely admire her. Academically accomplished and recognized in her professional circle for her innovative designs, Anna is the kind of friend whose mere presence brightens a room and whose achievements inspire those around her to strive for their best.

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FAQs on Practice Assignment: 9 - Class 6 BBC Compacta Solutions

1. What are the different types of rocks?$#

Ans. The three main types of rocks are igneous, sedimentary, and metamorphic rocks. Igneous rocks are formed from the solidification of molten rock, sedimentary rocks are formed from the accumulation and lithification of sediment, and metamorphic rocks are formed from the alteration of existing rocks due to heat and pressure.

2. How are rocks classified?$#

Ans. Rocks are classified based on their origin and how they were formed. The three main types of rocks are classified as igneous, sedimentary, and metamorphic rocks. Igneous rocks are formed from cooling and solidifying magma or lava, sedimentary rocks are formed from the deposition and cementation of sediments, and metamorphic rocks are formed from the alteration of existing rocks due to heat and pressure.

3. What is the rock cycle?$#

Ans. The rock cycle is a continuous process that describes how rocks are formed, changed, and recycled over time. It involves the formation of rocks through different processes such as cooling and solidification, weathering and erosion, deposition and lithification, and metamorphism. The rock cycle shows how rocks can transform from one type to another over millions of years.

4. How do fossils form in sedimentary rocks?$#

Ans. Fossils form in sedimentary rocks when the remains of plants and animals are buried in layers of sediment. Over time, the organic material decays and is replaced by minerals, creating a fossil. The fossil is preserved in the sedimentary rock, providing valuable information about past life forms and environments.

5. What are some common uses of rocks?$#

Ans. Rocks are used in various industries and everyday life. Some common uses of rocks include construction materials such as granite and limestone for buildings, marble for sculptures and countertops, and sandstone for flooring. Rocks are also used in manufacturing processes for products like cement, ceramics, and glass.
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