<span>Older patients are more prone to a decrease in blood pressure upon standing because </span>the body is less able to adapt the BP to rapid postural changes.
When a patient standing, some of the blood come to the leg. With less blood, the heart is harder to maintain its pressure.
The body will respond with constricting the vessel or increasing heart muscle power. But in an elderly patient, this response is weaker. Some of the older patients also consume a drug that will disturb this mechanism.
Answer:
Cyclical changes in eccentricity are changes in the shape of Earth's orbit.
Changes in obliquity are the changes in Earth's tilt on its axis.
Earth also experiences a precession around its axis.
The cycles affect climate by altering the duration of Earth's seasons and temperature decreases between summer and winter
Explanation:
When sedimentary are heated with tremendous heat and pressure, it will melt and be back again to magma. But after some time it will cool and harden and will become Igenous rock.