Wearing a NBC or Hazmat suit
Radiation.
Yes, mobile phones without sim cards can emmit radiation because of a microchip contained in it.
Melanin is the dark pigmentation contained in skin. It is contained in melanocytes, which are the cells which produce melanin. The purpose of melanin is to filter out harmful radiation from the sun. Mostly it does not. The best way is to use a sunscreen with SPF of 30 or more.
Lack of fresh food, ie vegetables and fruit, which contained Vitamin C and would have prevented scurvy.
Microwaves are a form of electromagnetic radiation, but they are non-ionizing radiation, unlike ionizing radiation which can be harmful to living organisms. In a microwave oven, the radiation is used to heat food through a process of vibrating water molecules, but it is designed to be contained within the appliance to prevent exposure.
Lead and concrete are materials that effectively block radiation. To prevent or minimize radiation exposure, individuals can use protective gear such as lead aprons and shields, maintain a safe distance from radiation sources, and limit exposure time. Additionally, proper training and adherence to safety protocols can help reduce the risk of radiation exposure.
Preventive measures emphasize protecting the eyes from UV radiation by wearing glasses with a special coating to protect against UV rays.
Conduction and convection are prevented by a vacuum because there are no particles to transfer heat through direct contact or movement. Radiation is the only method of heat transfer that can occur in a vacuum, as it does not require a medium to propagate the heat.
The worst emitters of thermal radiation are objects with high temperatures, such as hot metal surfaces or fires. These objects emit thermal radiation in the form of infrared light, which can be harmful to living organisms and cause burns or fires if not properly contained.
The layer of gas contained in the upper atmosphere is called the ozone layer. It is important for protecting life on Earth by absorbing the majority of the sun's harmful ultraviolet radiation.
The increase in carbon dioxide in the atmosphere means that more solar radiation (in the form of infra-red heat from the warmed earth) is absorbed in the atmosphere and prevented from escaping to space. It will not change the transmission of incoming solar radiation through the atmosphere.