If a satellite orbiting the earth has a period of 125 min, then it must be 1.90 x 106 m above the earth’s surface. note: the mass of earth is 5.97 x 1024 kg, and the mean radius of earth is 6.38 x106 m.
t or f

True

Explanation:

The orbital period of a satellite can be calculated from Kepler's third law of planetary motion. According to it:

Where, T is the orbital period, G is the gravitational constant, M is the mass and R is the distance from center of the Earth.

Substitute the values:

Thus, the given statement is true.

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.