Inside the Atom — Science STD 8 — Question

Fill in the following blanks with suitable words:
Early marriage and motherhood cause health problems in the _________________ and the_________________.

The total number of compressions and rarefactions produced per second in a sound wave is 1000. The frequency of the sound wave is ………… .

An electric current flowing in a wire creates ………………… around the wire.

Fill in the blanks with suitable words:
The shape and size of a cell is related to its __________________.

Man is ………….. in an ecosystem. (producer, consumer, decomposer)

Three electric cells of potential difference 1.5 V each have been connected as a battery. The potential difference of the battery will be ……………… V.

Plastic shows …………. property, hence it can be moulded to any shape.

Fill in the following blanks with suitable words:
The supply of water to crops at different intervals is called ________.

Fill in the following blanks with suitable words:
The shape of an aeroplane is similar to that of a ____________________ in flight.

126C, …………… and …………. are isotopes of carbon.