For his science fair experiment, Cole decided to determine how different types of surface material, affect how fast a matchbox car will go. He chose to use a tile floor, concrete patio and carpet. He
used the same car for each of the 20 trials. He measured the distances the car went after riding
down a 1-meter ramp.

What is Cole's test (independent) variable?

What is Cole's outcome (dependent) variable?

What must be kept constant (the same) for every trial?

What do you predict will happen and explain why.​

i believe it is "they are not used up by reactions" as the answer to your question, text me back if this is correct because i just learned this.

succession returns a disturbed

ecosystem to a more stable state. this is also classified into two (2) types:

primary succession and secondary succession. the primary succession arises when

a new land is transformed and a bare rock has been exposed providing an environment

that can be occupied for the first time. while, secondary succession occurs

when a previously occupied environment was disturbed that kills much of all its

community

explanation:

meiosis is the first to occur after the nuclei of opposite of opposite mating types fuse

whats the drop down answers ?

explanation: