Industry, in its broadest sense, includes all economic activity, but for convenience commentators divide it into three sectors: primary, secondary and tertiary. Primary manufacturing involves harvesting natural resources; secondary, manufacturing; and tertiary, the service industries. All these elements make up Canada's industrial system, which has become increasingly complex over time. Canada is considered a “developed” country in that it has, as part of its economy, a developed industrial base
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Answer:
D. Brazil
Explanation:
Brazil was the last to fully abolish slavery in Latin America.
Answer:
c
Explanation:
smog is smog because of the air pollution
Answer:
The invasive s p e c i e s tend to diminish the populations of native s p e c i e s because they outcompete them, and also manage to disturb the ecosystem.
Explanation:
The invasive species can or cannot be dangerous for the native biodiversity, but unfortunately, it is the second one that is much more common. The reasons as to why the invasive species tend to threaten the biodiversity are that they often don't have a native predator that will control their numbers, outcompete the native species for resources, and the native species don't have defense mechanisms against them. These factors result in havoc in the ecosystem in a relatively short period, with the potential to totally destroy it and changed it.
There are thousands of examples of invasive species around the world, some much more obvious than others. The Burmese pythons in Florida for example, have started to overtake the a p e x predator niche from the alligators by directly attacking them. On the other side of the world, in Australia, the cats and rabbits have contributed to leading hundreds of native species on the verge of extinction, and if there hasn't been human intervention there is a very high chance that a lot of native species would have been already extinct.
advantages:
Produces no polluting gases
Does not contribute to global warming
Very low fuel costs
Low fuel quantity reduces mining and transportation effects on environment
High technology research required benefits other industries
Power station has very long lifetime
disadvantages:
Waste is radioactive and safe disposal is very difficult and expensive
Local thermal pollution from wastewater affects marine life
Large-scale accidents can be catastrophic
Public perception of nuclear power is negative
Costs of building and safely decommissioning are very high
Cannot react quickly to changes in electricity demand
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