controll is your awser you vary a factor to measure the results
Answer:
Explanation:
The materials that are useful are bamboo, plastic, steel, concrete, fabric , textiles, stones, brick, repurposed wood e.t.c.
Materials become useful, when those that uses it use it right and to achieve a specific purposes base on the properties the materials poseses.
The materials that are harmful include asbestos, Mercury containing devices, lead based paints, household hazardous waste, light system, mold, refrigerant containing system.
Materials become harmful when they contain substances or properties that is dangerous or can harm human beings and cause damage to cells.
Erosion? I took earth environmental 2 years ago so I might be wrong
Answer:
FALSE
Explanation:
To coexist mean to exist (live) at the same time.
The dinosaurs disappeared about 66 MILLIONS years ago... that's a long time!
Humans first appear around 300 THOUSANDS of years ago.
As you see, we're not talking about the same scale of time at all, so there was never any encounter between a live dinosaur and a live human, except in the movies, that might be the reason we find them so cool. :-)
C. electron transport and chemiosmosis
Chemiosmosis<span> involves movement of </span>ions<span> across a </span>semipermeable membrane<span>, down their </span>electrochemical gradient<span>. More specifically, it relates to the generation of </span>adenosine triphosphate<span> (ATP) by the movement of </span>hydrogen<span> ions across a </span>membrane<span> during </span>cellular during respiration<span> </span><span>.</span>Hydrogen ions, or protons<span>, will </span>diffuse<span> from an area of high proton concentration to an area of lower proton concentration, and an </span>electrochemical concentration gradient<span> of protons across a membrane can be harnessed to make ATP. This process is related to </span>osmosis<span>, the diffusion of </span>water<span> across a membrane, which is why it is called "chemiosmosis".</span>
