6) Why didn’t birds just fly away?
God’s purpose in sending the flood was to kill them too. It likely covered 1.5 million square miles (see #8). The 40 days of rain must have been severe enough to ground and drown them. Severe storms like hurricanes can blow them far off their migration courses, destroy their habitats and the birds can starve from not being able to forage in the severe weather. All of this would have been true during the flood's storm.
http://www.enature.com/articles/detail.asp?storyID=580
7) How could a local flood cover the mountains?
As mentioned above (see #1), even some young-earth creationists do not believe that mountains are what were meant in Genesis 7:19-20. The text speaks of high hills. No land would have been visible because the horizon would have concealed even the distant mountains.
How could a local flood last a year?
The destruction from the flood probably covered an area over 1.5 million square miles. 40 days and nights of continual extreme rain was likely covering the area from the Arabian Sea, North to the mountain range just above the Syrian-Turkey border and from the Red Sea, East to the Western Mountains of Iran. Anything in and around these mountains would have been inundated with a tremendous amount of flowing waters and mudslides. There is some evidence that sand dunes blocked the southern opening of the Persian Gulf region during at least one era when sea levels were low (see link to Ward, E. Stanford's essay). The mountains, plus this blockage, would have formed a large bowl. The waters of the flood could have settled to form a lake, 600 plus feet deep covering 320,000 plus square miles. It would have covered the Persian Gulf, northward into Mesopotamia and southward into Saudi Arabia.
This could easily last a year.
http://www.pbs.org/newshour/extra/video ... ds_pa.html
http://www.upi.com/News_Photos/gallery/ ... stan/3667/
9) How were people living outside of the area killed by a local flood?
The Bible, in Gen. 1-11, indicates that everyone lived in one location (Mesopotamia/Saudi Arabia). Chapter 10 refers to events after chapter 11.
10) Did God lie about never sending another flood, because there have since been many local floods?
No local flood has since destroyed the whole human race and the land and animals associated with them (Gen. 9:11, 15).
11) Why was a special word used to refer to the flood (mabbuwl)?
Any flood as extensive and destructive as this one deserves a special word (see #8). Even a local flood like the one old-earth creationists believe in is far larger and more destructive than any flood since. Remember, it killed the entire human race except for Noah and his family.
12) How did Noah know that all of the high mountains were covered?
Since God never said that they would be, this is evidence that the account is from Noah's perspective (Gen. 8:5-6 & 13). See 7 above.
13) How did Noah know that all of the land animals and birds had died?
First, God said that they would (Gen. 6:7, 13 & 17; 7:4). Second, Noah could see the waters had flooded everything (Gen. 8:6). Therefore, the animals would have drowned. Lastly, after the flood Noah would not have found any other animals besides the ones on the ark.
14) How did Noah know that the fountains of the deep had closed?
He probably saw the waters bursting forth at the same time that the rains began (Gen 7:10-12). So when the rains stopped, he probably assumed God had finished increasing all of the waters (Gen. 7:17; 8:6-7)
15) How did Noah know that the flood was over?
Noah knew it was over because of his eyes and the actions of a bird (Gen. 8:5-13). It was not divine revelation, because God did not speak to him until after this. Even then it was only to give him permission to leave the ark and to say be fruitful and multiply (Gen. 8:15-17).
Some extra questions
1) Didn't the ark land on a mountain?
Actually, the text says the mountains of Ararat. There is the sight, in the northern part of the flooded area, which has 400+ ft. hills, on which the ark could have settled. The Hebrew word for mountain (
har) can refer to anything from a small hill to the highest peak. From there the horizon would have kept Noah from seeing any land. This would still be considered the "mountains of Ararat." In fact, an ancient civilization once ruled most of the mountainous region North of Mesopotamia. Its name was Urartu. Many believe that its name comes from the fact that it existed in the region known as "the mountains of Ararat."
2) How many people survived?
Only eight people survived; Noah and his sons and all of their wives (Genesis 6:10, 8:18; 1 Peter 3:20).