Tag: halophiles

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Multiple choice evs - i rules are for everyone sustainability of natural resources adaptations - mangrove swamps, fast flowing rivers and treetops halophiles

Choose the incorrect statement among the following.

  1. Natural gas is used as a starting material for the manufacture of a number of chemicals and fertilizers.

  2. Over millions of years, the presence of air, high temperature, and low pressure transformed the dead organisms into petroleum.

  3. Naphthalene balls used to repel moths and other insects the from coal tar.

  4. Minerals, coal, petroleum, natural gas, etc. are exhaustible natural resources.
Reveal answer Fill a bubble to check yourself
B Correct answer
Explanation

Petroleum is a fossil fuel that was formed from the remains of ancient marine organisms.
Millions of years ago, algae and plants lived in shallow seas. After dying and sinking to the seafloor, the organic material mixed with other sediments and was buried. Over millions of years under high pressure and high temperature, the remains of these organisms transformed into what we know today as fossil fuels. Coal, natural gas, and petroleum are all fossil fuels that formed under similar conditions.
Today, petroleum is found in vast underground reservoirs where ancient seas were located.

Multiple choice evs - i rules are for everyone sustainability of natural resources adaptations - mangrove swamps, fast flowing rivers and treetops halophiles

Assertion : Litter burning is not suggested by ecologists.

Reason : Burning litter enhances 'CO$ _2$'content of the air.

  1. Both the Assertion and the Reason are true and the Reason is a correct explanation of the Assertion.

  2. Both the Assertion and Reason are true but the Reason is not a correct explanation of the Assertion.

  3. The Assertion is true but the Reason is false.

  4. Both the Assertion and Reason are false.

  5. The Assertion is false but Reason is true.
Reveal answer Fill a bubble to check yourself
A Correct answer
Explanation

Litter burning is a common method of waste handling but it is not the best method of waste handling, because the nutrients in litter get converted into oxides and are lost from the ecosystem of the place. Over a period of time when wastes are burnt instead of recycling the nutrient status declines and consequently productivity will be less.