•Draw a basket-ball court. ( length= 12 cm, breadth= 6 cm)
• Consider one child moves from one corner of a basket-ball court to its opposite corner along its
sides.
• Measure the distance covered by the child and magnitude of the displacement.
• What difference would you notice between the two in this case?
Answers
Answer:
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Answer:
Nitrogen Fixation -Fixation is the first step in the process of making nitrogen usable by plants. Here bacteria change nitrogen into ammonium. Nitrogen Assimilation -This is how plants get nitrogen. They absorb nitrates from the soil into their roots. Then the nitrogen gets used in amino acids, nucleic acids, and chlorophyll. FIXATION
Ammonification -Thisis part of the decaying process. When a plant or animal dies, decomposers like fungi and bacteria turn the nitrogen back intoammonium so it can re- enter the nitrogen cycle. Nitrification- This is the process by which ammonium gets changed into nitrates by bacteria. Nitrates are what the plants can thenabsorb. Denitrification -Extra nitrogen in the soil gets put back out into the air. There are special bacteria that perform this task as well.