4. What is the date of this diagram? 5. Which number represents the time of day with the shortest shadow?

6. Which number represents the time of day with the longest shadow?

7. If this location was in New York State, label the approximate position of Polaris.

the answer is a) a shiprock was formed by igneous process

the answer is false?

step 1: nitrogen fixation- conversion of atmospheric no₂ into forms useful to plants by lightning, bacteria, and cyanobacteria.

step 2: nitrification-process of converting ammonia to nitrite or nitrate.

step 3: assimilation-plant roots absorb new form of nitrogen.

step 4: ammonification-conversion of organic nitrogen to ammonia by bacteria involved in decomposition.

step 5: denitrification-bacteria turns the decomposed matter back into n₂o, which is released into atmosphere; repeat cycle.