Which of the following will enhance productivity in an economy?
The use of obsolete capital
Technological change
Expansion of land under cultivation
An increase in the labour force
Correct answer is B
A technological change is an increase in the efficiency of a product or process that results in an increase in output, without an increase in input. This will result in an increase in productivity.
The ability of organisms to maintain a constant internal environment is known as
diuresis
plasmolysis
endosmosis
homeostasis
Correct answer is D
The ability of organisms to maintain a constant internal environment is known as "homeostasis." Homeostasis is a fundamental biological concept that refers to the ability of living organisms to maintain a stable and relatively constant internal environment despite changes in the external environment.
The type of nutrition in which organisms take solid organic materials into their body is
parasitic
holozoic
saprophytic
symbiotic
Correct answer is B
Holozoic nutrition is a type of nutrition in which organisms consume solid organic materials. This is the type of nutrition seen in most animals, where food is ingested and then broken down through digestion. This is different from symbiotic (where two organisms live together and benefit from each other), saprophytic (where organisms feed on dead and decaying matter), and parasitic (where one organism benefits at the expense of another) nutrition.
In the long term run, factors of production are considered to be
At maximum
Fixed
Variable
Increasing
Correct answer is C
In the Long-Run, all factors of production are variable and firms are able to adjust all costs.
Goods are said to be in competitive demand when they are
Substitutes
Complementary
Jointly demanded
Identical
Correct answer is A
Goods are considered competitive when they can readily be substituted for one another.