Because, if there's no summer the seasons won't be completed.
It's being estimated that dinosaurs lived on Earth from about 237 million years ago to about 66 million years ago. So answers B and D are definately too "old", while answer A is too "young". I'd pick answer C as it's most probable.
Answer:
The Great Basin
Explanation:
The desert area in the center of the Cordillera in the United States is called the Great Basin.
- The Great Basin is located between the Rocky mountains and the Coastal plains.
- This region is bowl shaped depression between the topographic features.
- The mountains prevents precipitation from forming in this excluded region.
The answer is A. Hope it helps ^^
The correct answer is A. Increased use of pesticide.
The name 'green revolution' is very misleading, because it makes you believe that is something positive about the nature. In fact, it is something that made a lot of harm to the environment with pollution and increased erosion caused by the usage of chemical fertilizers and pesticides and herbicides, caused problems in the societies because a lot of crops needed for people to feed themselves where destroyed so that other plants can be produced.