The correct options are:
- Improved engines; engines were improved significantly so that they can have the same power and agility but by using less fuel.
- Cleaner burning fuels; it has been invested a lot of time and money into improving the fuels and making them as effective as possible but also removing or lowering the most dangerous components towards the environment.
- Catalytic converters; this devices for exhaust emission control manage to convert the toxic gasses and polutants into less toxic pollutants by managing to catalyze a redox reaction.
Two questions which arises in my mind about aurora borealis are:
- Why does aurora borealis occur?
- Why does aurora borealis occur in a particular time of the year?
Answers:
- As solar wind approaches the Earth, it meets the Earth's magnetic field. In the ionosphere, the ions of the solar wind collide with atoms of oxygen and nitrogen from the Earth's atmosphere. The energy released during these collisions causes aurora borealis.
- Aurora borealis is active the whole year. Since it needs to be dark in order to see aurora borealis in the sky, late August/September through the very beginning of April is the best time to go to a destination located in the aurora zone for a chance to see them.
Note: These are the questions which arises in my mind only. It may differ from person to person.
Hope you could understand.
If you have any query, feel free to ask.
The farming method that is used in dry or desert areas is the drip irrigation.
<h3>What is Drip irrigation?</h3>
Drip irrigation is defined as a method that is used in water irrigation, in which water passes through a filter and into customized drip pipes with spaced emitters.
A particular slow-release system deals that the water straight into the soil near the roots through the emitters. Drip irrigation is a farming technique that is mainly used in dry or desert locations.
Therefore, dip irrigation method is in dry or desert areas.
Learn more about the drip irrigation, refer to:
brainly.com/question/18599102
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Answer:
Before opening another location in a new city, business owners need to research and determine various factors that could impact future sales and profit margins such as labor costs, tax implications,and logistics.
I guess the answer is NO-3.
