What happens when your diaphragm relaxes and moves upward?

Explanation:

The process of breathing (respiration) is divided into two distinct phases: inspiration (inhalation) and expiration (exhalation), the relaxation of the diaphragm occurs at the completion of the air intake

During inspiration, the diaphragm contracts and pulls downward while the muscles between the ribs contract and pull upward which increases the size of the thoracic cavity and decreases the pressure inside, as a result air rushes in and fills the lungs

But opposite happens during expiration, the diaphragm relaxes and the volume of the thoracic cavity decreases, while the pressure within it increases, as a result the lungs contract and air is forced out

lunar landing mission. apollo 11 was the first manned mission to land on the moon. the first steps by humans on another planetary body were taken by neil armstrong and buzz aldrin on july 20, 1969. the astronauts also returned to earth the first samples from another planetary body.

explanation:

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.