<span>Answer:
Hardin's metaphor describes a lifeboat bearing 50 people, with room for ten more. The lifeboat is in an ocean surrounded by a hundred swimmers. The "ethics" of the situation stem from the dilemma of whether (and under what circumstances) swimmers should be taken aboard the lifeboat.</span>
Answer: Visible satellite imagery.
Explanation: Visible satellite imagery is an imaging technique used to take satellite images or photographs of the earth which can be interpreted in other to provide information about cloud cover at certain location and season.
In visible satellite imagery interpretation, the ground is colored Grey, water is dark-colored and the cloud exhibits white color. Snow-covered ground during winter are also colored white. Due to the similarity in color exhibited by snow and cloud, a looping picture can be employed as clouds will move while snow covered ground wouldn't.
<span>1) theme is the main idea or the message conveyed through a work. So a synonym for theme is plot message.
2) Each refers to a singular noun. So the following verb and pronoun must also be singular. The correct pronoun to be used in the blank space is his.
3)Possessive case indicates possession whereas nominative case just refers to the name. In the above sentence, the umbrella belongs to someone or someone possesses the umbrella. So both yours and mine are in the possessive case.</span>