A) most of them formed thousands of years ago, and will take hundreds of thousands of years to renew.
Explanation:
Fossil fuels were not formed thousands of years ago and will not take hundred of thousand of years to renew.
These resources are non-renewable and they take several million of years to form.
- Fossil fuels are derived from organisms that have been buried rapidly in basins of deposition.
- Rapid burial cuts them off from the oxic environment that degrades them to lose their carbon matter.
- In turn, they turn to organic matter known as kerogen.
- With increasing burial they form hydrocarbons.
- Burial cause temperature and pressure to rise.
- The process takes several millions of years to form.
- No known fossil fuel reserve is several thousands of years.
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The correct option is A.
Risk taking has been shown to be affected at a BAL of 0.01.
The full meaning of BAL is blood alchol level. Blood alcohol level refers to the amount of alcohol that is present is a specific quantity of one's blood. As the quantity of alcohol one is taking in increasing the BAL also increases and this affect the way one behave. At the BAL of 0.10, one's ability to think and to judge is severely affected thus making one to become prone to unnecessary risk taking behavior.
Answer:
Responding to the environment
Explanation:
Sweating and panting are mechanisms of homeostasis i.e the regulation of the body's internal environment in response to changes or fluctuations in the external environment.
Sweating is a physiological response to the body's core temperature rising above the limit of 36.5-37.5°C. Once the hypothalamus in the brain detects this rise in temperature, cooling mechanisms are initiated. One of these is sweating. Release and subsequent evaporation of sweat through the sweat glands produces a cooling effect.
Panting is a physiological response more observed in dogs. Dogs lack sweat glands and therefore cannot lower their core temperature through sweating. Panting utilizes saliva instead of sweat to lower body's temperature to the set limit.
Pyruvic acid supplies energy to living cells through the Kreb’s cycle when oxygen is present. When oxygen is not present, it ferments to produce lactic acid. Basically the pyruvic acid molecule is broken down by enzymes.
