E iron air or water. 9. Plants, like all other organisms, are composed of cells. A group of students placed
spinach leaves in a beaker of water in full sunlight. After several hours, small bubbles
appeared on the leaves. These bubbles probably consisted of
A. H2O
B. 02
C. CO2
D. H2

List the two type of transporst that the cell in orde to transport molecules acroos the membrane

The diagram shows the positions of the sun, moon and earth during spring tides, when the high tides are at their highest and low tides at their lowest. what is it about these positions that causes these high and low tides?

There are 6.022, 104 atoms of hg in 1 mole of hg the number of atoms in 45 moles of hg can be found by multiplying 4.5 by 6.022, 102 which is the number of atoms in 4.5 moles of hg, correctly written in scientific notation with the correct number of significant figures? 0 21,109 0 21,100 271, 1024 27.099, 100 mark this and retum save and exit submit