Answer: A
Explanation:
they used astronmy to to develop calendars based based on the movement of stars and planets. B, C, and D are incorrect.
Answer:
World War I popularized the use of the machine gun—capable of bringing down row after row of soldiers from a distance on the battlefield. This weapon, along with barbed wire and mines, made movement across open land both difficult and dangerous. so trench warfare was born
Explanation:
1. the invasion of neutral Belgium and stories of German atrocities in the country which shocked and outraged the Americans
2. In May 1915, a German U-boat sunk the British passenger ship Lusitania off the coast of Ireland. Over 1,000 passengers were killed, including 128 Americans
3. In 1917, Germany sent a telegram to Mexico suggesting that if the US should declare war on Germany, Mexico should declare war on the US In return, Mexico would get back the territory lost in the Mexican-American War Unfortunately for Germany, the telegram was intercepted by the British and hurriedly given to the Americans
In 1838 and 1839, as part of Andrew Jackson's Indian removal policy, the Cherokee nation was forced to give up its lands east of the Mississippi River and to migrate to an area in present-day Oklahoma. The Cherokee people called this journey the "Trail of Tears<span>," because of its devastating effects. this is yo answer
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Answer:
One of the advantages of commercial farming is that it significantly increases food production, allowing local consumers to buy the same quantity of food for a lower price. Intensive commercial farming, however, uses various kinds of fertilizers and pesticides, posing a threat to ecosystems.
