Answer: the dam cause no more fertile soil to enter in to farmers land for growing crops hope this helps :)
Explanation: this dam has caused a big change to the lifes of farmers downstream from the dam. Usually when the river flooded once a year before the dam was built. It deposited fertile soil from upstream on its banks downstream. This washed up soil was extremely furtile, and renewed itself every year at in flood season. But now, since the dam was built the annual flood has been stopped. Causing all the farmers downstream to have to use fertilizers to grow their crops, which makes it more expensive.
<span><span>Acacia species (Australian wattles)
</span><span>Argemone mexicana (Mexican poppy)
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Caesalpinia decapetala (Mauritius thorn)
</span><span>
Cereus jamacaru (Queen of the Night cactus)
</span><span>
Chromolaena odorata (Triffid weed)</span></span>
Answer:
True.
please give me brainliest
Explanation:
Oxygen levels may be reduced when water becomes too warm or when there are too many bacteria or algae in the water. After the algae complete their life cycle and die, bacteria consume the dead algae. ... This decrease in dissolved oxygen can cause fish kills and death to other aquatic organisms
The discovery of the Rhesus factor affected society by improving the success rate of blood transfusions. Prior to the Rhesus system being implemented, blood was typed according to the ABO system alone. This meant a significant number of blood transfusions failed due to immunogenic reactions to the rhesus factor leading to agglutination of blood. It also helped prenatal care as people became aware of the possibility of the mother and child being Rhesus incompatible. This condition could be combated by an injection of antibodies.
