Answer:
2x+9 when x equals 3 is 2*3+9
=15
Explanation:

Answer:
<u>Temperatures extremes.</u>
Explanation:
- If the energy that came in the form of incoming solar radiation on the earth did not reach the ground or faded away before reaching the earth's surface the earth would have become a cold planet like pluto far and secluded.
- Sun plays a major and big role in the formation of the earth what it is today. Sun's rays besides giving light to the solar system also a contributor to the heat energy that reaches the greater depth of the oceans and warms the landmasses from above also it acts to balance the earth's entire circulatory tilt in a flow.
- If the planet was left without the sun then life would not have existed on the planet as the root driving factor would have been lost, in other terms such type of hypothesis would have not been possible due to gravitational pull and other factors like density.
Answer:
As it builds up the impacts of hazardous event.
Explanation:
- As Mexico is the one of the most seismically active zones and it sits on the intersecting tectonic plates which are bordered by the cocos plate and the North American plate and is along with the cost of the Mexico that form a subduction zone and these force thus cause about 40 earthquakes in a day.
- <u>As the Mexico city is built in a dry lake bed with a soft soil that has sand and clay the earthquake event amplifies the destruction. And cause violent shaking of the ground with deeper and denser soils that increase the magnitude of the events. Thus the densely populated areas are more prone to the earthquakes as the changes of the land-use patterns change the effects of hazards.</u>
Answer:
Erosion can cause water in the rivers to become heavily polluted. The water might carry pesticides, heavy metal ions and other toxic wastes. When this water will be used for irrigation purposes, the growth of plants will be heavily affected by them.
When humans use water this contaminated water from the rivers, it will led to many diseases in humans. Also, the wild- life animals which depend on this river might take in toxic compounds due to which they might die.