Answer:
(a) Mean yearly temperature = 10.58
(b) 
Explanation:
Given:
The attached chart
Solving (a): The mean yearly temperature.
This is calculated as:




Solving (b): The mean July temperature.
From the chart:

Answer:
A canal that connected the Hudson River to Lake Erie.
Explanation:
The construction of this channel was something innovative and that generated very positive reactions to the public. First, this was a bold construction that used many innovative concepts, being considered one of the newest wonders in the world. Secondly, this construction would improve the lives of many people, as it would allow a fixed and continuous connection from the northwest to New York, facilitating transportation in a great way.
Aah, studying for your license? No worries.
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Imagine you are a drinker. Just imagine, even if you're under 21. You're drunk. You're gonna go home. Smoke 20 packs of alcohol. Drink some cigarattes. Sleep on the floor, and stand on your bed. Everything is swimming around you!! You can't see well. Oh well, who cares, bed is heaven. Gunna go to car. aah, cool, I can still drive!!
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As you can see, being a drinker makes your brain fuzzy and confused. It makes the nerves and reactors in your brain slow down. It also makes you respond and react to things slower. This, all in turn, makes you drunk. When you are drunk, you don't remember certain things and make absurd decisions. Your decisions are usually not very smart. So, when you drink and then decide to drive, you overestimate your ability to tolerate alcohol.
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Hope I helped!!
The correct answer is C) Seafloor spreading
This new oceanic crust is gradually moved away from the ridge itself. Seafloor spreading is one of the reasons of the continental drift