7. The passage suggests that Smetacek regarded the death of the alga bloom described in lines 34–36 as vindication of his theory that iron fertilization can lead to carbon sequestration.

an indication of the potential dangers of “dead zones” such as those in the Gulf of Mexico.

evidence that there was insufficient oxygen in the Southern Ocean to support large blooms.

a disappointment because the diatoms were being removed from the food chain.

8. The passage suggests that iron fertilization could potentially help the whale population primarily by

increasing the concentration of oxygen in the ecosphere.
decreasing the concentration of carbon dioxide in the atmosphere.
supporting an important food source for the whales.
reducing the demand for hunting in areas where the whales are endangered.

9. The “route” mentioned in line 48 refers to

an experimental procedure.
an economic difficulty.
an idealistic approach.
a mode of persuasion.

10. The tone of the final paragraph is best described as

sanguine
awestruck
apprehensive
fatalistic

11. What is the purpose of this text?

Expository
Rhetorical
Narrative

12. What is the central idea of this text?

Your welcome

Explanation:

7. vindication of his theory that iron fertilization can lead to carbon sequestration.

8. supporting an important food source for the whales.

9. a mode of persuasion.

10. sanguine

11. Expository

12. The central idea of this text is that plankton has an impact on climate change by reducing the atmospheric CO2 levels through sinking produced organic and non organic matterial (or matter) into the ocean.

1. read the following excerpt from franklin d. roosevelt's "fireside chat 19":

on the other side of the picture, we must learn also to know that guerilla warfare against the germans in, let us say serbia or norway, us; that a successful russian offensive against the germans us; and that british successes on land or sea in any part of the world strengthen our hands.

remember always that germany and italy, regardless of any formal declaration of war, consider themselves at war with the united states at this moment just as much as they consider themselves at war with britain or russia. and germany puts all the other republics of the americas into the same category of enemies. the people of our sister republics of this hemisphere can be honored by that fact.  

the true goal we seek is far above and beyond the ugly field of battle. when we resort to force, as now we must, we are determined that this force shall be directed toward ultimate good as well as against immediate evil. we americans are not destroyers — we are builders.

analyze the effectiveness of this excerpt. how does it function within the speech as a whole? how does the structure of the excerpt to convey the speech's purpose and key points? support your argument with evidence from the speech. (10 points)

idk

explanation: