Which statement is false?
Oxygen attacks chemical bonds and extracts electrons, which prevents the formation of complex molecules.
Experiments like Miller and Urey’s do not work in the presence of oxygen.
Oxygen was abundant in the earth’s early atmosphere, before the origin of life.
The accumulation of oxygen in the early environment was a result of the photosynthetic activity of terrestrial plants.

Oxygen was abundant in the earth’s early atmosphere, before the origin of life.

Explanation:

It is false to say that Oxygen was abundant in the earth’s early atmosphere, before the origin of life.

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explanation:

plate tectonics and volcanic euptions

over time, plate tectonic processes cause continents to move to different positions on the globe.

for example, britain was near to the equator 300 million years ago, and therefore was hotter than it is today. for further details look at our climate through time poster or online map.

the movement of the plates also causes volcanoes and mountains to form and these too can contribute to a change in climate.

mountain ranges formed by plate tectonics. large mountain chains can influence the circulation of air around the globe, and consequently influence the climate.   warm air might be deflected somewhere cooler by the mountains.

after a the power stroke, adp is released, but the cross-bridge formed is still in place. atp then binds to myosin, moving the myosin to its high-energy state, releasing the myosin head from the actin active site.