A class is designing an outdoor model to show the geologic time scale from Precambrian time through the present. If they used a scale of 1m=100 million years, how long will their model be? Cenozoic Era= 66 million years
Mesozoic Era= 185 million years
Paleozoic Era= 291 million years
Precambrian Era= about 4,058

What conclusion can be made based on the temperature of soil when the light hits the soil at 0°, 45°, and 90° angles in section 2 of the experiment? did your results support your hypothesis? why or why not?

Ascience research group is testing a new type of plant food. one trial is conducted in a controlled experiment. the data from the trial show that the plant that received the new food grew faster than the control plant. the group announces that the new plant food makes plants grow faster. what is the main weakness in this scientific claim?

Describe the relationship and movement between temperature and density in a convection cell. make sure you identify the direction of travel