Where in the world did the essential evolutionary changes occur that led to humans?
A. Africa
B. Asia
C. Europe
D. Australia
Answer
Correct Answer: A. Africa
A paleontologist is a scientist who studies:
A. Human behavior
B. Ancient DNA
C. Fossils
D. Prehistoric life
Answer
Correct Answer: D. Prehistoric life
Bipedalism is a characteristic usually found in:
A. Australopithecines
B. Hominins
C. Orangutans
D. Monkeys
Answer
Correct Answer: D. Monkeys
Humans share a common ancestor with which of the following primates?
A. Chimpanzees
B. Gorillas
C. Orangutans
D. Monkeys
Answer
Correct Answer: C. orangutans
How long have human-like (hominin) species been present on Earth?
A. 6,000 years
B. 1 million years
C. 2 million years
D. Over 6 million years
Answer
Correct Answer: D. Over 6 million years
Gypsum is added to cement clinker to:
A. decrease the rate of setting of cement
B. increase the tensile strength of cement
C. bind the particles of calcium silicate
D. facilitates the formation of a colloidal gel
Answer
Correct Answer: A. decrease the rate of setting of cement
The property of a substance to absorb moisture from the air on exposure is called:
A. osmosis
B. efflorescence
C. deliquescence
D. desiccation
Answer
Correct Answer: C. deliquescence
Most soluble in water is:
A. camphor
B. common salt
C. sulfur
D. sugar
Answer
Correct Answer: D. sugar
Epidemiology is the study of:
A. Epidermis diseases
B. Epidemic diseases
C. Dermis diseases
D. None of these
Answer
Correct Answer: B. Epidemic diseases
Nuclear fission is caused by the impact of:
A. Deuteron
B. Proton
C. Neutron
D. Electron
Answer
Correct Answer: C. Neutron