One major threat to humans is the untreated sewage emptied into lakes and rivers. This type of waste attracts infectious organisms that cause diseases such as cholera, typhoid, and dysentery.
Which one of the following statements is true about these disease-causing wastes?

A) They are a minor issue in lesser-developed countries but cause frequent problems in the United States.

B) They are a major issue in both lesser-developed countries and in the United States.

C) They are a minor problem in both lesser-developed countries and in the United States.

D) They are a major issue in lesser-developed countries but cause only infrequent problems in the United
States.

They are a major issue in lesser-developed countries but cause only infrequent problems in the United  States.

it can be a problem for anyone really but especially with undeveloped countries because most are not clean and they don't have much access to medicine.

spiders belong to a group of arachnids.

arachnids have the following traits :

they have two body parts.

they have eight legs unlike insects which have 6 legs.

they have no wings.

these traits distinguish them from insects.

the information that antonio is doubting us the statement that spiders differences are as a result of being first to evolve.

this is because the evolution of one species is independent of the other species.