Answer:
Oxygen for breathing in/out
Answer:
1 Sun/ Solar
2- Allowing precipitation to fall
3- The water in the ocean gets enough sun one day and it evaporates and forms into a cloud. The cloud then relocates over the nearby land. The cloud becomes too dense with water vapor and gravity carries the water down as precipitation, most likely rain or snow. It then flows through little streams and back into the ocean to restart the process.
Oparin-Haldane hypothesis. The Oparin-Haldane hypothesis is named after the two scientists; <span>Russian scientist Aleksandr Oparin and English scientist J. B. S. Haldane. The two scientists separately hypothesized that life began when some inorganic molecules were converted into organic molecules specifically amino acids by the help of energy came from a lightning struck.</span>
Answer:
A. Earthquake
Explanation:
When plates slide past each other, the edges of these are earthquake zones. Earthquakes are formed but not volcanoes.
Answer:
Chick with in the egg depend for all its energy and food requirement on the egg yolk , therefore egg yolk is rich in fat, protein, and cholesterol.
Explanation:
Before the egg breaks and the chick comes out, few days nourishment for chicks is required. Hence, the egg yolk needs to be nutritious as new developing chick (with in the egg) rely for essential nutrients (required for growth) on the egg yolk. Chick require energy from yolk, hence it is rich in fat (energy). It also needs to grow and develop, therefore egg yolk has lot of protein (building blocks). Lipid and cell with in the yolk help in formation of cell and strengthening of bones and feathers
