Question

क्लास टेंथ सीबीएसई लास्ट ईयर क्वेश्चन पेपर​

Answer 1

Answer:

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Step-by-step explanation:

The physical universe is defined as all of space and time (collectively referred to as spacetime) and their contents. Such contents comprise all of energy in its various forms, including electromagnetic radiation and matter, and therefore planets, moons, stars, galaxies, and the contents of intergalactic space.