Shown are ball-and-stick (1) and space-filling (2) models of methane. 
-What is the H-C-H bond angle?
Definitions:
Uninsurable
Refers to a person or risk that is not acceptable for insurance coverage due to high risk.
Free Rider Problem
A phenomenon where individuals benefit from resources or services without paying for them or contributing to their provision, leading to underfunding and potential depletion of those resources.
Healthcare
The organized provision of medical care to individuals or a community, including preventive, diagnostic, therapeutic, and rehabilitative services.
Emergency Room
A hospital unit specializing in immediate care for acute and life-threatening conditions.
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