UNIVERSE
SOLAR SYSTEM FORMATION
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Question
[CLICK ON ANY CHOICE TO KNOW THE RIGHT ANSWER]
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rocks, metals, and ices (hydrogen compounds) froze in the inner region only
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rocks and metals froze in both the inner and outer regions, and ices froze only in the outer region
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rocks and metals froze in the inner region only, and ices froze in the outer region only
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rocks and metals froze in both inner and outer regions, and ices H and He in the outer region
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Detailed explanation-1: -The frost line separated the inner part of the protoplanetary disk closer to the sun, where it was too hot to permit anything but silicate minerals and metal to crystallize, from the outer part of the disk farther from the Sun, where it was cool enough to allow ice to form.
Detailed explanation-2: -How were temperatures distributed across the protoplanetary disk that formed our solar system? Temperatures were greater at the core, and cooler at the outer regions.
Detailed explanation-3: -1.17.2.3 Disk Temperatures and Particle Drift Protoplanetary disks are heated by radiation from the central star and the release of gravitational energy as gas falls inwards through the disk.
Detailed explanation-4: -The temperature of the early solar system explains why the inner planets are rocky and the outer ones are gaseous. As the gases coalesced to form a protosun, the temperature in the solar system rose. In the inner solar system temperatures were as high as 2000 K, while in the outer solar system it was as cool as 50 K.