Native people in the Amazon rainforest use a toxin to help them catfish the toxin interferes with the gas exchange in the fish which makes them slow and easy to catch?

Barbasco plant.

Explanation:

Native people in the Amazon rainforest use a toxin extracted from Barbasco plant roots which is responsible to stun fish and make it slow to catch the fish easily. This method is used only on the small streams not on large river. This toxin helps in the slowing of the catfish which can't be catch without of this toxin because catfish is very active and quick which is hard to catch at this state so that's why the Native people in the Amazon rainforest use this toxin.

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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.

i might be wrong but i think its a. let me know if i’m right and have a good rest of your day!