How does water enter the atmosphere?
a.
liquid water evaporates from lakes when heated by the sun.
b.
frozen water sublimates from ice and snow.
c.
liquid water is lost from tree leaves during evapotranspiration.
d.
all of the above.

The correct answer is D) All of the above.

The movement of water from the surface of the earth to the atmosphere and vice versa is called the water cycle. It involves the changing of the states of water as it is moves from bodies of land, water, and the atmosphere.

The stages of the water cycle include the entry of water into the atmosphere by:

Once the atmosphere becomes saturated with water, water is returned to the surface of the earth through precipitation or as rain or snow. This water may be evaporated again later on or may flow through or sink to the ground and find its way to bodies of water or be taken up by roots of plants where they might undergo evaporation, transpiration, or sublimation once again.

Keywords: water cycle, atmosphere

the two answers are a, the population of birds with large beaks will increase on the island, and c, the trait for large beaks will be passed on to future generations through natural selection. the reason for that is because if the birds that have beaks developed for eating small seeds lose all of their food, they will go hungry and eventually starve because they physically cannot eat the large seeds, therefore making the population of large beaked birds higher. also, if the trait of large beaks are dominant on the island over small beaks, then over time the large beaked birds will reproduce more and more, while the smaller beaked birds will reproduce less and less because they can't survive with the food provided. that leads to the trait of small beaks disappearing and the trait of large beaks taking over the island.