What do we know about the surface of Mars?

What type of protist is algae an example of? Which waves in the electromagnetic spectrum are considered high energy waves? The distance from the earth to a star that has identical apparent and absolute magnitudes is? The ion ICl4- has how many valence electrons? What is a line on a weather map called? Who invented the peach? Is CCL4 heavier than water? Where is the positive wire on reverse light? How long before plaster of paris can bear weight? How many times is the number 9 used between 1 and 1000000? What is a 6 letter word for lava rock? What liquid will break rocks apart? Within which range of latitudes in the Southern Hemisphere is twenty-four hours of daylight experienced? What nerve causes the deaphragm to contract and initiate inhalation? Which shop sells the most plastic bags? What is non treponemal test? is the abdominal muscles keep the intestines and other organs firmly in place? What will happen to the concentration of reactants after an equilibrium reaction shifts to the left? Is addition of iron to dil . acid a physical change or chemical change? What are the techniques of using the torch correctly to procedure a range of joints?

What do we know about the surface of Mars?