Tides: Crash Course Astronomy #8 Transcript

1.What is gravity? What is the tidal force and how does it relate to gravity?

2.How does tidal force affect the water and beaches on Earth?

3.What is tidal locking and how are the moon and earth tidally locked?

4.What happens during a new moon and how does it affect tides? What is it called?

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.

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