What are two reasons why the terrestrial planets formed closer to the sun after the supernova event that initiated the formation of the solar system? a.) they are made of denser objects, which can condense at relatively high temperatures. b.) they contain lightweight materials that condense in areas of relatively low radiation. c.) they are made of heavier elements, which have a stronger gravitational attraction to the sun. d.) they are relatively small in size, so the sun’s gravity has a strong influence on them. e.) they have gaseous surfaces, which is ideal in those areas of high radiation near the sun.

A & C

Explanation:

During creation of the solar system, the materials with  higher melting and boiling point within the nebulae were able to coalesce close to the sun because they are less volatile. These materials also happen to be denser. Denser materials have more mass and therefore pulled on more by the gravitational forces of the sun. The more volatile material such as gases was able to coalesce further from the sun –where the gases can cool below boiling and melting points-  to form the gas giants such as Jupiter.

picture a world where computers are building made-to-order personalized robotic arms and synthetic organs, drones are circulating above mars! due to the rapid growth of technology, the future has never been more unpredictable, and it presents a huge challenge in education: we are teaching students how to work in a future that we have never been unsure of. it is widely predicted that in eight years’ time, there will be more jobs in the fields of science, mathematics, technology and engineering than in any other discipline. and, as the technology continues to develop, it will soon become clear that addressing social problems will involve more innovative thinking, and analytical and technical knowledge than ever before. undeniably, there are no subjects that encourage innovative and creative thinking, deep thought, problem solving and independence more than the stem subjects. while it is widely commented on that there is a need to reimagine the ways stem subjects are taught in schools by embracing a more interactive and innovative approach to appeal to more students, it should come as no surprise that some of the most reputable educational organizations in the world are already implementing changes to embrace stem. harvard, for example, announced in 2014 that they were increasing their computer science faculty by over 50% and has since introduced computer science as a core subject for all freshmen. the urgency of supporting stem subjects at a young age is becoming more relevant than ever, as adopting a keen interest in the curricula needs to happen early. however, beyond the age issue is one of gender.

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cells spend most of their time in interphase