Answer:
A solar eclipse can occur only when new moon occurs close to one of the points (known as nodes) where the Moon's orbit crosses the ecliptic. ... Therefore, the Moon's apparent size varies with its distance from the Earth, and it is this effect that leads to the difference between total and annular eclipses.
Answer:
In solids, precipitation occurs if the concentration of one solid is above the solubility limit in the host solid, due to rapid quenching or ion implantation, and the temperature is high enough that diffusion can lead to segregation into precipitates.
Explanation:
Answer:
Natural selection and selective breeding can both cause changes in animals and plants. The difference between the two is that natural selection happens naturally, but selective breeding only occurs when humans intervene. For this reason selective breeding is sometimes called artificial selection.
Explanation:
The position for a victim with an abdominal injury would be, flat on their back, place a pillow/rolled blanket under the knees to be slightly , elevate head and shoulders. Additionally to care for abdominal organs protruding from a wound should be by removing clothing, then sue a large sterile dressings moistened with sterile water or normal saline or warm water, then cover dressings with a plastic wrap that is moist, then with folded towel/aluminium foil for warmth.
