Pls answer this its very easy
Answers
a[if water will be left stagnant outside than mosquitoes will breed there and diseases like malaria will spread.
b]Technically, these are called "tomia," not teeth, because birds can't produce enamel. Tomia aren't as hard as our teeth, but they're enough to cut grass and provide traction for eating slippery things like snails.
c]the cup nest is probably the most common bird nest. Its name tells you that a cup nest is shaped like a cup or bowl. Many songbirds built cup nests. These nests can be built in the branches of a tree, like in the crack where one branch joins another: however, some can simply stick the nest right onto the branch of a tree. They use lots of materials that act like sticky glue – mud, rotten wood, dung, spider webs, and caterpillar silk.[2][3] . They sometimes even use their own saliva mixed with food to keep the nest firmly stuck on the branch.[4]
Cup nesters use all kinds of materials to build a nest: twigs (tiny branches), grass, leaves, moss; and they use all sorts of materials to keep it from falling apart. Most cup nesters use rough, scratchy material for the outside (this gives protection and camouflages the rest), and put soft, cozy material like moss, fur, feathers, and cotton on the inside.
Many cup nesters enjoy nesting very close to the ground in low bushes – sometimes they will even nest in potted plants on a porch. Some of them actually just build their nests on the ground. Sparrows, cardinals, and many other song birds (called passerines), like to nest near the ground, far away from owls, hawks, and Blue Jays that may eat their babies.
There are several types of cup nests. A suspended cup nest is attached to the branch at the top and sides but then drops like a bag down below. It really looks more like a vase than a cup. The bird is almost hidden when she warms her eggs. The mother bird can sit down on the branch above the nest and bend down to feed her baby birds. Orioles are very famous for building amazingly long bags that hang far below the branch.
The smallest cup nests are made by hummingbirds. They can be as tiny as a thimble, like the Bee Hummingbird's nest. That tiny nest holds eggs that are as tiny as peas. The largest cup nest is probably the stork's. His nest can be nine feet deep and six feet wide. The stork's nest is so big that smaller birds actually make nests in its cracks, holes, and branches.[5]
So that mosquito do not breed.