Answer:
20% of number 1 to 70 has one or nine in it
Explanation:
20% numbers from 1 to 70 have 1 or 9 in the unit's digit. 1,9,11,19,21,29,31,39,41,49,51,59,61,69 this is that series of numbers .These are total 14 numbers out of 70 so 14/70×100 gives us 20 % occurrence of 1 or 9 at unit place.
Through engaging in improper activities, such as pollution and incorrect trash disposal, etc., a negative attitude may undermine efforts to keep the environment clean and hospitable for human beings.
<h3>What are
the negative impact of the human towards the environment?</h3>
There are numerous ways in which people affect the environment like overpopulation, pollution burning fossil fuels, and deforestation and others.
The change in the climate due to global warming cause by the humans excessive heat produce by the factories which leave the poisonous gas into the environment.
Thus, Through engaging in improper activities, such as pollution and incorrect trash disposal, etc.
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Answer:
1. Salts. 2. Oil reserves. 3. Gold deposits. 4. Minerals
Explanation:
- As oceans are the lifeblood of the planet they give all the natural resources that we need to live a healthy and economic life. Seafloor contains various features like volcanic vents and trenches. These vents contain massive seafloor sulfur contents.
- Also, they consist of high-value items like gold, silver deposits as these have been constantly been drilled for such precious metals. Similarly, various minerals and salt content ate known to have been found in these deposits.
- The presence of active deposits is found near the continental plate boundary. Certain SEZ special economic zones have neb thus made to help preserve the mineral and oil wealth of nations.
