When photographing a bird, you should try not to photograph the habitat in the background. a) true b) false

Meenu wants to create a high quality drawing in a variety of colours. which device should she use for the same?

Suppose there is a relation r(a, b, c) with a b+-tree index with search keys (a, b).1. what is the worst-case cost of finding records satisfying 10 < a < 50 using this index, in terms of the number of records n1, retrieved and the height h of the tree? 2. what is the worst-case cost of finding records satisfying 10 < a < 50 and 5 < b < 10 using this index, in terms of the number of records n2 that satisfy this selection, as well as n1 and h defined above? 3. under what conditions on n1 and n2, would the index be an efficient way of finding records satisfying the condition from part (2)?

In the rgb model, which color is formed by combining the constituent colors? a) black b) brown c) yellow d) white e) blue