How did the appearance of microbial life on land increase the formation of a living soil during early earth, which in turn allowed for the evolution of land plants? a) microbes allowed plants to uptake oxygen-containing compounds through the process of oxygen fixation. b) microbes allowed plants to uptake carbon-containing compounds through the process of carbon fixation. c) microbes allowed plants to uptake hydrogen-containing compounds through the process of hydrogen fixation. d) microbes allowed plants to uptake nitrogen-containing compounds through the process of nitrogen fixation.

Consider the motion of the balloon and its air contents in terms of momentum. in step 1 above, the total momentum of the balloon and its contents was zero. recall that momentum = mv. both the balloon and the air inside it had a velocity of zero and therefore the total momentum was zero. now think about what happened when the air escaped from the balloon. a certain mass of air accelerated in one direction. in order to keep the total momentum of the system zero, the balloon itself (which has mass) had to accelerate in the opposite direction. use this scenario to you explain why the soda can rotates when the water squirts out of the escape holes. what was your hypothesis concerning the water-filled can? according to your data, do you think your hypothesis was correct? (be sure to refer to your data when answering this question.) summarize any difficulties or problems you had in performing the experiment that might have affected the results. describe how you might change the procedure to avoid these problems. give at least one more example of newton's third law in everyday life.

Most crimes involve some evidence relating to the human body; for that reason, what related science is frequently used in forensic investigations? a)psychiatry b)physics c)botany d)biology

Achild is suffering from fever but the doctor cannot immediately pinpoint the alignment on the basis of this one symptom explain why also mention other two such general symptoms