21- which of the following is the smallest bird of the world ?
22- jaundice is an infection disease which speards through
23- what is a group of lions called
24- the most widely used energy resources in rural areas for cooling and heating is
25- which is the fastest animal on land ?
26- Eucalyptus tree is a native of
27- which animal is a known enemy of the snake ?
28- An agricultural device,used for agriculture , drawn by animal,s is
29- which animal is considered to be the most cunning of all animals ?
30- the main contributor to increase in a pollution in urban areas is