How do fungi obtain their food? , im filling out a study guide i looked through the book and still can't find the answer to this question.

Why are scientists concerned about the depletion of the ozone levels in the stratosphere?

Describe characteristics of a good respitory surface

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.