Some Natural Phenomena — Science STD 8 — Question

Which non-metals is used as a fuel?

Fill in the following blanks with suitable words: The process of fusion of gametes is called ______________.

Name one abiotic component of a pond.

Unscramble the jumbled word given below, related to synthetic materials: Yespolter.

Name two common insects which act as carriers of disease-causing micro-organisms (or disease-causing microbes).

Name two food materials which can be preserved by using sugar.

State whether the following statements are True or False: A zygote is formed as a result of fertilization.

If an object is touched with the metal top of an electroscope its aluminium leaves diverge, then what conclusion do we get from this observation?

Can a liquid exert pressure sideways?

Name the process in which grains are separated from chaff and hay with the help of wind.