Harmful insects include aphids, whiteflies (eat our crops), mosquitos (carry disease), fleas and lice (suck blood). However, the insects that eat our crops mostly only do so because we practise too much monoculture and kill off their predators with insecticide. The herbivores such as aphids and whiteflies reproduce fast enough to build up resistance, whereas their predators such as ladybugs do not.
Useful insects include those ladybugs (eat aphids etc), parasitic wasps (kill many harmful insects), and bees (pollinate plants and make sure they can reproduce and bear fruit).
1 harmful affect for erimin-5 = -4
Moths are insects and insects do not have days on them. So there!
Flying insects = f Non-flying insects = n n+f=126 f=5n n+5n=126 6n=126 n=21 non-flying insects f=5*21 = 105 flying insects
The density is 16/5 grams per some unknown unit of volume - not a particularly useful measure of anything!The density is 16/5 grams per some unknown unit of volume - not a particularly useful measure of anything!The density is 16/5 grams per some unknown unit of volume - not a particularly useful measure of anything!The density is 16/5 grams per some unknown unit of volume - not a particularly useful measure of anything!
I'd say 4/5 of the time they are 92% useful
By destroying large numbers of harmful insects.
All drugs can be useful or harmful, if not taking correctly or for the right reason.
Gamma radiation destroy harmful microorganisms and insects.
lion are useful and harmful
It is not harmful. Also it is not useful
they have no particular name,they are called non harmful insects
The changes talking place in our surroundings and which are useful to us are called Useful changes. The changes which are not useful but harmful are called Harmful changes
useful
Wasps kill an enormous amount of insects like flies, cockroaches and aphids. They eat a lot of caterpillars and small white larvae that feed on vegetables. They maybe harmful sometimes but generally are useful insects.
i think its both harmful and useful
Ozone at ground level is harmful. It is useful in stratosphere as it protects us from harmful UV rays.
It is useful because we can breathe it.