Eucalyptus regnans is the tallest of all flowering plants, and possibly the tallest of all plants, although no living specimens can make that claim. The tallest measured living specimen, named Centurion, stands 101 metres tall in Tasmania.

Correct Option: A

Eucalyptus regnans is the tallest of all flowering plants, and possibly the tallest of all plants, although no living specimens can make that claim. The tallest measured living specimen, named Centurion, stands 101 metres tall in Tasmania.

Cholera is an infection in the small intestine caused by the bacterium Vibrio cholerae. Transmission occurs primarily by drinking water or eating food that has been contaminated by the feces of an infected person, including one with no apparent symptoms.

Correct Option: B

Cholera is an infection in the small intestine caused by the bacterium Vibrio cholerae. Transmission occurs primarily by drinking water or eating food that has been contaminated by the feces of an infected person, including one with no apparent symptoms.

Plaster of Paris is a plaster made by calcining gypsum. It can be used to impregnate gauze bandages to make a sculpting material called modroc. It is used similarly to clay, as it is easily shaped when wet, yet sets into a resilient and lightweight structure. This is the material which was (and sometimes still is) used to make classic plaster orthopedic casts to protect limbs with broken bones.

Correct Option: D

Plaster of Paris is a plaster made by calcining gypsum. It can be used to impregnate gauze bandages to make a sculpting material called modroc. It is used similarly to clay, as it is easily shaped when wet, yet sets into a resilient and lightweight structure. This is the material which was (and sometimes still is) used to make classic plaster orthopedic casts to protect limbs with broken bones.

Deciduous teeth are the first set of teeth in the growth development of humans and many other mammals. The deciduous teeth are: incisors (4); molars (6); and canine (2). So there are 12 teeth which get replaced by the age of 12 when only permanent teeth remain.

Correct Option: B

Deciduous teeth are the first set of teeth in the growth development of humans and many other mammals. The deciduous teeth are: incisors (4); molars (6); and canine (2). So there are 12 teeth which get replaced by the age of 12 when only permanent teeth remain.

Meningitis is inflammation of the protective membranes covering the brain and spinal cord, known collectively as the meninges. The inflammation may be caused by infection with viruses, bacteria, or other microorganisms, and less commonly by certain drugs.

Correct Option: D

Meningitis is inflammation of the protective membranes covering the brain and spinal cord, known collectively as the meninges. The inflammation may be caused by infection with viruses, bacteria, or other microorganisms, and less commonly by certain drugs.