6. Why the Earth is considered an open and close system? A. The Earth has all the waters that can be cycled through the water cycle where energy is transferred through water molecules. B. The Sun’s heat is trapped through the atmosphere maintaining global temperature necessary for life. C. The dead animals decompose and releases its energy to bacteria and fungi. D. Some of the heat from the Earth is released into space while most matter stays in the Earth. 7. A new found bacteria was discovered
Answer (1)
Answer:The best answer to "Why the Earth is considered an open and close system?" among the choices provided is D. Some of the heat from the Earth is released into space while most matter stays in the Earth.Here's why: * Closed System (primarily for matter): The Earth is considered largely a closed system in terms of matter. While meteorites can enter and some gases can escape into space, the amount of matter entering or leaving the Earth system is relatively insignificant compared to the total mass of the Earth. The total amount of water, carbon, nitrogen, and other essential elements remains essentially constant within the Earth's boundaries, cycling through its various spheres (atmosphere, hydrosphere, lithosphere, biosphere). This is why option D states "most matter stays in the Earth." * Open System (primarily for energy): The Earth is an open system in terms of energy. It continuously receives a massive amount of energy from the Sun (solar radiation), which drives most of the Earth's processes (like weather patterns, photosynthesis, and the water cycle). At the same time, the Earth radiates energy back into space as heat. This constant exchange of energy makes it an open system. Option D correctly points out "Some of the heat from the Earth is released into space."Let's look at why the other options are less accurate in explaining both aspects: * A. The Earth has all the waters that can be cycled through the water cycle where energy is transferred through water molecules. This primarily describes the cycling of matter (water) and energy transfer within that cycle, but it doesn't fully capture the "open" aspect of energy exchange with space or the "closed" aspect of matter for the entire Earth. * B. The Sun’s heat is trapped through the atmosphere maintaining global temperature necessary for life. This describes a crucial energy interaction (greenhouse effect) which highlights energy exchange, but it doesn't explicitly address the closed nature of matter. * C. The dead animals decompose and releases its energy to bacteria and fungi. This describes an internal energy transfer and matter cycling within the biosphere, not the Earth's interaction as a whole system with its surroundings.7. A new found bacteria was discovered...Your question "7. A new found bacteria was discovered" is incomplete. Please provide the rest of the question so I can help you answer it!
