Plz

six thin, clear tubes are filled with rock particles. the 1st is filled with coarse sand, the 2nd is filled with fine sand, the 3rd is filled with pebbles, the 4th is filled with coarse sand and pebbles, the 5th is filled with clay, and the 6th is filled with gravel. which is going to have the most porosity?
2nd
1st
3rd

a large amount of rain falls on a meadow. it moves down to the water table. what is the explanation for what is happening in the ground?
saturation
infiltration
runoff

the zone of aeration (choose 2)
is also called the vadose zone
is located below the water table
is located above the water table

Which of the following statements comparing electron microscopy and light microscopy is false? which of the following statements comparing electron microscopy and light microscopy is false? both the electron microscope and the light microscope use the same wavelengths for illumination. images produced by light microscopes can be in color, whereas electron microscope images are black and white unless they are artificially colored. the electron microscope has greater resolution than the light microscope. electron microscopes can allow examination of viruses and internal cell structures, whereas light microscopes are limited to objects that are 0.5 micrometers and larger. request answer

Diverging mirrors and lenses always produce images

1. explain how you calculate the net force in any direction on the box. 2. suppose an upward force of 15n is added to the box. what will be the net vertical force on the box? 3. what force could be applied to the box to make the net force in the horizontal direction zero? explain. 4. suppose a force of 25n to the right is added to the box. what will be the net force to the right?