Humans often selectively breed plants to create better, more nutritious crops. plants are not as difficult to selectively breed as animals because most plants have
a. very simple genetic codes.
b. a natural resistance to disease.
c. only male or female reproductive parts.
d. both male and female reproductive parts.

volcanoes (an event in the geosphere) release a large amount of particulate matter into the atmosphere. these particles serve as nuclei for the formation of water droplets (hydrosphere). rainfall (hydrosphere) often increases following an eruption, stimulating plant growth (biosphere).

idk what the options are but

these is a strong electrostatic attraction between the ions hence a lot of energy is needed to overcome this attraction

this is why the boiling points are so high