South America has a wide variety of climates. They range from the dry desert conditions of northern Chile to the heavy rains along the windswept southwestern coast of the continent. Steamy heat characterizes the tropical rain forest of the Amazon basin, while icy cold air surrounds the lofty, snow-capped Andean peaks.
<span>The large bodies of water border the united states are:
</span><span>Atlantic Ocean, Gulf of Mexico, Pacific Ocean, Bering Sea and Arctic Ocean.
</span>United states have land border with two countries, Canada and Mexico.
<span>The United States of America has more than 12,000 miles of coastline which borders three major bodies of water that are, the Pacific Ocean, the Atlantic Ocean and the Gulf of Mexico. </span>
Cells are limited in size by their surface area and volume ratio which means that when cells get so large, there is a limit that they can no longer obtain enough oxygen and nutrients. This process is involved in cell growth.
Answer:
Green revolution, great increase in production of food grains (especially wheat and rice) that resulted in large part from the introduction into developing countries of new, high-yielding varieties, beginning in the mid-20th century. Its early dramatic successes were in Mexico and the Indian subcontinent. The new varieties require large amounts of chemical fertilizers and pesticides to produce their high yields, raising concerns about cost and potentially harmful environmental effects. Poor farmers, unable to afford the fertilizers and pesticides, have often reaped even lower yields with these grains than with the older strains, which were better adapted to local conditions and had some resistance to pests and diseases. See also Norman Borlaug
