When defining concentration during diffusion, what exactly are we describing?​

In the sentence "a mining company will consider the distribution of coal when deciding how to mine the coal," what does the word distribution mean?

When does a spring tide occur? question 9 options: they occur when the sun, moon, and earth are aligned. in spite of their name, these tides occur twice a year in the spring and fall. they occur on the date of the vernal equinox each year, no matter what stage the moon is in. this is why they are called spring tides. they occur when the sun, moon, and earth are at 45-degree angles from each other. this happens once every spring. they occur when the sun, moon, and earth are aligned. in spite of their name, these tides occur all year long.

How many alleles does a gamete carry for each trait? a.one b.two c.millions