Fill in the blanks:
(i) Conductivity of water has resulted from the ____ of water.
(ii) _____decomposition reaction may occur in the presence of heat or light.

Fill in the blanks: (i) The amount of work done to move charge from one point to another is called_____. (ii) When a circuit is open,_____ cannot pass through it.

Fill in the blanks. Water obtained from tube wells is usually___water.

Fill in the blanks: (i) The ion formed by dissolution of H+in water is called______. (ii) The equilibrium attained during the melting of ice is known as_____.

Identify the correct statements from the below (I) Erythrose is used for synthesis of anthocyanin. (II) Organisms can respire in the absence of oxygen and the process is called fermentation. (III) Respiration occur in the presence of oxygen in called aerobic respiration. (IV) ATP is also called as universal energy currency of the cell.

Select the correct option to fill up the blanks. (i) Diseases which are easily transmitted from one person to another, are called ______ diseases. (ii) In human body, parasite of malaria initially multiplies within the ____ and then attack the ______. (iii) _____ is the yellowish fluid secreted by mother during the initial days of lactation. (iv) _____ and ____ are the primary lymphoid organs.

Fill in the blanks: (i) Dolphins and bats hear_____. (ii) If the energy in a longitudinal wave travels from south to north, the particles of the medium would be vibrating in____.

Fill in the blanks: (i) Water enters the root cell through a _____. (ii) Deoxygented blood from the cardiac muscles drains into the right atrium by the _____.

Fill in the blanks: (i) (Saturated/Unsaturated)______compounds decolourize bromine water. (ii) Biodegradable detergents are made of _____(branched/straight) chain hydrocarbons.