At the equator, the sun is directly overhead at noon on these two equinoxes. the nearly equal hours of day and night is due to the refraction of sunlight or bending of lights Ray's that causes the sun to appear above the horizon when the actual position of sun is below the horizon.
Answer:
Following are the result for deforestation in the Amazon rain forest :
1. Environmental imbalance - Due to deforestation the amount of green houses gases will increase that cause the global warming of the environment.
2. Desertification - The most of area become dry and after that these areas will become desert .This will become unsuitable for any type of organism.
3. Flooding -The chances of over flowing water will increase.
4 . Soil erosion :The soil will become infertile.That is why lots of problem will generate.
5.Climate change - As we know that trees are very essential for our life.But due to deforestation the number of tress are decreases every day that cause the lot of climate change condition like high temperature,too much cold.
Answer:
140 years is average duration of an earthquake.
Explanation:
- The Hayward fault is a geologic fault that is capable of massive destruction and is 119 km long fault western base of hills of San Francisco and is parallel to the San Andreas fault. The occurrence of an earthquake of 6.8 magnitudes in 1868 was biggest earthquake in California history.
- Recently various geologists have taken time interval of the past five large earthquakes and based on the past earthquakes data the interval of 140 years it will take to the formation of a large earthquake.
<span>Andesite:
</span><span>a dark, fine-grained, brown or grayish volcanic rock that is intermediate in composition between rhyolite and basalt.</span>
