Read this example of incorrect sentence structure. heavy, black clouds rushing in from the horizon. which revision corrects the sentence? a) heavy, black clouds rushing in from the horizon, get under cover. b) heavy, black clouds rushing in from the horizon. it’s about to rain. c) heavy, black clouds rushing in from the horizon when it’s about to rain. d) heavy, black clouds rushing in from the horizon mean a storm is coming.

It is D because once the heavy dark cloud is rushing in from the horizon it means the storm is coming in

The revision that corrects the sentence is D) Heavy, black clouds rushing in from the horizon mean a storm is coming.

The sentence is incorrect because it is incomplete. "Heavy, black clouds rushing in from the horizon" is only the subject of the sentence; therefore, it must be followed by a verb. "Rushing in from the horizon" is not the predicate of the sentence but a participial phrase working as an adjective modifying the noun "clouds". Therefore, option D) is correct because it is the only one that provides a predicate for the incomplete sentence ("mean a storm is coming").  On the other hand, option A), B) and C) leave the sentence incomplete and add another sentence (in the case of A. and B.) or a subordinate clause instead (introduced by "when" in C.).

after the signature of the treaty of versailles in june 1919, germany lost nearly 25,000 square miles and a population of 7 million people. these territories included eupen-malmedy area and moresnet which were ceded to belgium. regarding relations with france, germany ceded the sovereignty of the saar coal mines to this country, as well as the provinces of alsace-lorraine.

explanation:

either a donut or a sphere or a pancake or a flat sphere. it depends on where the vertical line is.

if the line goes through the center of the circle and is perpendicular to a diameter containing the center, then you get a flat circle.

if the line and the diameter of a the circle meet in the center of the diameter and at an angle, you get a pancake.

if the line is on the circumference of the circle and is at right angles   to the circle you get a ring.

if the line contains the diameter, you get a sphere.

the the line is parallel to the diameter and touches the circumference, you get a donut.