Class 9 Science Student Questions

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Showing: Class 9 / Science (314 questions)

by GIANSH GUPTA KHUNDKER · Class 9

Which atmosphere layer contains the protective ozone layer that absorbs harmful ultraviolet (UV) radiation?

Science Natural Resources 0 0 answers 0%
by GIANSH GUPTA KHUNDKER · Class 9

Which epithelial tissue is specialized for absorption and secretion, and is typically found in the inner lining of the intestine?

Science Tissues 0 0 answers 0%
by GIANSH GUPTA KHUNDKER · Class 9

The functional unit of the nervous tissue that receives and conducts impulses is called a:

Science Tissues 0 0 answers 0%
by GIANSH GUPTA KHUNDKER · Class 9

Which muscles are involuntary, lack striations, and are found in the walls of internal organs like the alimentary canal?

Science Tissues 0 0 answers 0%
by GIANSH GUPTA KHUNDKER · Class 9

Bone cells are embedded in a hard matrix composed of which elements?

Science Tissues 0 0 answers 0%
by GIANSH GUPTA KHUNDKER · Class 9

Connective tissues have cells embedded in an extracellular matrix. Which connective tissue connects a muscle to a bone?

Science Tissues 0 0 answers 0%
by GIANSH GUPTA KHUNDKER · Class 9

Which tissue forms the inner lining of our mouth and blood vessels where transportation of substances occurs through a selectively permeable surface?

Science Tissues 0 0 answers 0%
by GIANSH GUPTA KHUNDKER · Class 9

Xylem and Phloem are examples of:

Science Tissues 0 0 answers 0%
by GIANSH GUPTA KHUNDKER · Class 9

Which of the following tissues makes up the husk of a coconut, rendering it hard and stiff?

Science Tissues 0 0 answers 0%
by GIANSH GUPTA KHUNDKER · Class 9

The flexibility in plants is due to which permanent tissue?

Science Tissues 0 0 answers 0%
by GIANSH GUPTA KHUNDKER · Class 9

Which type of plant tissue is actively dividing and responsible for the growth in length of stems and roots?

Science Tissues 0 0 answers 0%
by GIANSH GUPTA KHUNDKER · Class 9

A cluster of atoms that behaves as a single charged unit is known as a:

Science Atoms and Molecules 0 0 answers 0%
by GIANSH GUPTA KHUNDKER · Class 9

The chemical formula of water (H2O) shows that hydrogen and oxygen combine in a fixed mass ratio of:

Science Atoms and Molecules 0 1 answers 0%
by GIANSH GUPTA KHUNDKER · Class 9

Which Italian bee variety is commonly domesticated in modern apiculture to increase the commercial production of honey?

Science Improvement in Food Resources 0 0 answers 0%
by GIANSH GUPTA KHUNDKER · Class 9

In cattle farming, what is the primary purpose of cross-breeding an exotic foreign breed (like Jersey) with a local indigenous breed (like Red Sindhi)?

Science Improvement in Food Resources 0 0 answers 0%
by GIANSH GUPTA KHUNDKER · Class 9

Why are leguminous crops systematically included in standard Crop Rotation programs?

Science Improvement in Food Resources 0 0 answers 0%
by GIANSH GUPTA KHUNDKER · Class 9

What is the practice of growing two or more crops simultaneously on the same field in a definite row pattern (e.g., one row of millet and one row of cowpea) called?

Science Improvement in Food Resources 0 0 answers 0%
by GIANSH GUPTA KHUNDKER · Class 9

Which of the following sets contains only macro-nutrients essential for plant growth and development?

Science Improvement in Food Resources 0 0 answers 0%
by GIANSH GUPTA KHUNDKER · Class 9

What happens chemically when quicklime (calcium oxide, CaO) is added to water?

Science Other 0 2 answers 100%
by GIANSH GUPTA KHUNDKER · Class 9

What term is defined as the rate of change of displacement with respect to time?

Science Motion 0 1 answers 100%

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