Why do lakes and ponds freeze from the top down rather than from the bottom up? Can sound travel through solids and liquids? What barclays branch has a sort code 20-19-95? What is the LCM for 4 amd 6? What has to be done before you can use most raw materials? How will you prepare a 5 millilitre of egg albumin solution? What Substance that causes sensitivity to light? What properties do both glass and plastic share? Is instinct a verb or a noun? Why do guinea pigs not have tials like rats and other animals? Which process is not included in heterotrophic nutrition? What is the meaning of multiplication integers? Why children need to learn about science? What are some positive and negative effects of our current two-party system? A solution that contains all the solute it can hold at a given temperature? How many 3 are in 100? Which does not usually trigger mass movement? What are the reasons that people use nuclear energy? Past participle for blast? What are the Least And Greatest Number Rounded To 31210000?

When was Danfe Lophophorus impejanus declared the national bird of Nepal?