GEOLOGY

Detailed explanation-1: -Certain people are at higher risk of developing more serious complications from COVID-19, including older adults and those with underlying medical conditions such as heart or lung disease, chronic kidney disease requiring dialysis, liver disease, diabetes, immune deficiencies, or obesity.

Detailed explanation-2: -Biological hazards include: viruses, such as Coronavirus (COVID-19) and Japanese encephalitis. toxins from biological sources. spores.

Detailed explanation-3: -Biological health hazards include bacteria, viruses, parasites and moulds or fungi. They can pose a threat to human health when they are inhaled, eaten or come in contact with skin. They can cause illness such as food poisoning, tetanus, respiratory infections or parasite infection.

Detailed explanation-4: -Biohazard Level 1 usually includes viruses and bacteria like Escherichia coli and chickenpox and many non-infectious bacteria.