Which two central topics are both addressed in this text? A) the importance of size and interesting eating habits of blue whales B)the importance of size and the fighting habits of blue whale C)the strange eating habits of large and small ocean mammals and krill D) the various ways blue mammals protect themselves and eat krill

This question is incomplete, here´s the complete question.  

Blue Whales

Joshua Tigue

1. Blue whales are the largest animals on Earth. They can measure up to 110 feet long and weigh as much as 400,000 pounds. Blue whale babies are born big. They can weigh as much as 6,000 pounds at birth. They grow for one full year to reach their adult size.

2. Blue whales live in the ocean. They swim fast, which helps them catch food. Blue whales must eat up to 8,000 pounds of food each day. They eat tiny fish called krill. To eat, the whale opens its mouth and lets the krill swim in. Once the krill are inside, the whale begins to close its mouth. It does not close the mouth the whole way, though. The whale shows its baleen. Baleen are long, strong hairs that act like teeth. The baleen allow the water to flow out. The baleen keep the krill in. The whale can then eat the fish.

3. Blue whales are named for their color. However, they are not really blue. Although they look blue under the water, they are actually gray. Blue whales prefer to swim alone. Their bellies are yellow.

4. Since blue whales are mammals, they must breathe air. Blue whales have a blowhole on the tops of their heads. A blowhole is like the nostril in a human nose. It lets blue whales breathe the air in and blow it back out. When whales go underwater, they can close their blowholes. They can open their blowholes when they want, too.

5. Because of their size, blue whales cannot be harmed by many other animals. This means they can live safely for a long time. They can live eighty or ninety years. Some even live to be one hundred years old!

Which two central topics are both addressed in this text?

A) the importance of size and interesting eating habits of blue whales

B) the importance of size and the fighting habits of blue whales

C) the strange eating habits of large and small ocean mammals and krill

D) the various ways blue mammals protect themselves and eat krill

A) the importance of size and interesting eating habits of blue whales

Explanation:

The provided text centers on the characteristics of blue whales, especially their eating habits and the importance of their size.

The fact that blue whales are big (they can be up to 110 feet long) is important because its the reason they can´t be hurt by other creatures. And despite their size, they can swim very fast, as a means to catch the 8,000 pounds of krill they need to eat every day.

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)