Question 8 of 10 A model of a plane in different parts of the atmosphere uses a scale of
1:2,000. If a plane flies at an altitude of 4,000 feet, how high above ground
level is the plane in the model?
A. 4 ft
B. 8 ft
C. 2 ft
D. 1/4,000 ft

C. 2 ft

Explanation:

if the scale is 1:2,000

This means that if the original plane flyes 2,000ft above the ground, the model plane will fly 1ft above the ground.

Now, if the plane flies 4,000ft above the ground, this is two times as the number from above, then the model plane will also fly two times as the number from above.

2*1ft = 2ft.

Now, we also can do it as:

2000ft equiv to 1 ft.

4000ft equiv to x

x = 1ft*(4000ft/2000ft) = 1ft*2 = 2ft.

step 1 ammonium can be absorbed by plants, but some is converted into nitrates which are better for plants to absorb. this is called nitrification. 2. step 2 the deer eats the plants and uses the nitrogen-containing proteins for cell growth. 3. step 3 bacteria in the soil conduct nitrogen fixation to convert nitrogen gas from the atmosphere into ammonium. 4. step 4 some of the nitrates are absorbed back into plants, but denitrification breaks down the nitrates into nitrogen gas released back into the atmosphere. 5. step 5 nitrogen is found in the urine, which gets broken down into ammonium through the process of ammonification. 6. step 6 plants absorb the ammonium and begin assimilation, the process to add the nitrogen to protein.