The U.S used the Texas-Mexico border dispute to annex Texas as a state and gain more land from Mexico. Basically all the land that Mexico owned in North America was given to the U.S after the U.S defeated Mexico in the war.
High use of fertilizers and pesticides leading to degradation in the fertility of the level of the soil.
<u>Explanation:</u>
Green revolution was started with the aim of increasing the level of production of the farm and to bring in new and innovative ways and methods to increase the productivity.
This helped the farmers to increase their yield and there fore their income for their survival. But with these positive effects, it also had some negative effects like there was excessive use of pesticides and fertilizers due to which the level of fertility of the soil degraded and fell down.
