Humans because of oil spills and landfills.
The correct answer is <em>b), most states had passed some safety laws, but enforcement varied.
</em>
As the laws were not enforced, the working conditions were to a minimum. People worked in horrible conditions. Most of them risk themselves doing its activities due to unsafe practices. Accidents were common because there were no training and safety measures to prepare the worker and prevent labor risks.
I think it is D because their quest was to overturn Japan’s semi-colonial status an equal to the western powers. Hope this helps!
Answer:
Sagarmatha is regarded as the national pride of Nepal because our country Nepal is recognized as the country of highest mountain in the world. Many foreigners from different countries come here to climb Mount Everest.
What is being done to preserve Mount Everest?
The project has been initiated by the local population and includes: Clean up expeditions on Mount Everest to remove approximately 8 tonnes of rubbish from the mountain. Installing local rubbish and recycling facilities along the trekking route from the airstrip at Lukla to Everest Base Camp.
Explanation:
hope it helps
Answer:
b. Null hypothesis :
Alternative hypothesis: 
Explanation:
A hypothesis is defined as "a speculation or theory based on insufficient evidence that lends itself to further testing and experimentation. With further testing, a hypothesis can usually be proven true or false".
The null hypothesis is defined as "a hypothesis that says there is no statistical significance between the two variables in the hypothesis. It is the hypothesis that the researcher is trying to disprove".
The alternative hypothesis is "just the inverse, or opposite, of the null hypothesis. It is the hypothesis that researcher is trying to prove".
On this case the Management try to proof that due to a new production process, the life expectancy of its tires has increased. So this needs to be on the alternative hypothesis. And the complement of the alternative hypothesis would be on the null hypothesis.
Null hypothesis :
Alternative hypothesis: 
Other important thing is that on the alternative hypothesis we never can have the symbol equal.
Based on this the best option on this case is b.