Steady state system means?

B. Properties constant over time

A. Properties changing rapidly over time

B. Properties constant over time

C. System in complete equilibrium with surroundings

D. System with no energy exchange

Everyday Science · Introduction to Everyday Science · page 12 of 23

Important Scientific Terms MCQs with Answers

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Important Scientific Terms and Branches of Science MCQs (111–120)

10 MCQs with answers and a short one-liner. Hide answers to test yourself.

Past paper MCQs in this chapter · See all past papers

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111.
All living organisms are classified into _ kingdoms under the system proposed by Whittaker (1969).
Correct Answer: B. 5
One-liner
Whittaker's 1969 classification system divides all living organisms into 5 kingdoms: Monera, Protista, Fungi, Plantae, and Animalia.
112.
Past Paper MCQ
What is the process called when a substance absorbs moisture from the atmosphere?
Correct Answer: D. Deliquescence
One-liner
The process by which a substance absorbs moisture from the atmosphere is called Deliquescence.
113.
Past Paper MCQ
The study of antiquities is known as?
Correct Answer: B. Archaeology
One-liner
The study of antiquities is known as Archaeology.
114.
The emission of rays from nucleus is known as _?
Correct Answer: A. Radioactivity
One-liner
The emission of rays from the nucleus is known as Radioactivity.
115.
Steady state system means?
Correct Answer: B. Properties constant over time
One-liner
A steady state system means a system whose properties remain constant over time despite continuous flow of matter or energy through it.
116.
Which of the following is an extensive property?
Correct Answer: C. Volume
One-liner
Volume is an extensive property because it depends on the amount of matter present, unlike intensive properties such as density, temperature, and boiling point.
117.
The study of protozoa relates to which branch of biology?
Correct Answer: D. Parasitology
One-liner
The study of protozoa relates to Parasitology, the branch of biology dealing with parasites and their hosts.
118.
Taxonomy, when it is strengthened by incorporating data from semantides and non-semantides, is called?
Correct Answer: A. Numerical taxonomy
One-liner
Taxonomy strengthened by incorporating data from semantides (DNA, RNA, proteins) and non-semantides is called Numerical taxonomy.
119.
In which state of matter, the particles arrangement is irregular and less closely packed?
Correct Answer: B. Liquid
One-liner
In the liquid state of matter, particles are arranged irregularly and are less closely packed compared to solids.
120.
Phylogenies now comprises of _ data.
Correct Answer: D. All of these
One-liner
Phylogenies now comprise All of these types of data — morphological, molecular, and fossil evidence are all used in modern phylogenetic studies.

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Important Scientific Terms MCQs with Answers

Important Scientific Terms and Branches of Science MCQs (111–120)

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