Question # 1

Small sized kidney stones can be reoved through.

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Urine

Urinary system

Ureter

Lithotripsy

During photosynthesis in plants, carbon dioxide CO2 and water react to produce.

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Water

Energy

Glucoe

CO2

It is made up of interneurons.

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Spinal cord

PNS

CNS

Medulla oblongata.

A metal

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C

Ne

Cu

C

Reduction of chromosomes takes place during.

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Mitosis

Meiotic -I

Meiotic -II

Both mitosis and meiotic -II

The SI unit of voltage is.

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Watt

Joule

Coulomb

Volt

Substancs whihc take part in a chemical reaction are called.

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Products

Ractants

Elements

Compunds

Hubble telescope orbits the Earth at a height of about.

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550 km

560 km

500 km

600 km

The central nervous system is made of

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Spinal cord

Brain

All parts of body

Brain and spinal cord

These salts are responsible for preventing heart attacks.

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Salts of sodium

Salts of calcium

Salt of potassium

Salt of Magnesium

A student pushes against a tree with a force of 10 newtons. The tree does not move. What is the amount of force exerted by the treen on the student.

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0

5 N

10 N

20 N

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