<u>Answer:</u>
The invention of agriculture, advances in medical technology that have greatly reduced the human death rate and he rapid increase in the uses of fossil fuels, fertilizers, metal ores, and other resources.
Option: (A), (C) and (D)
<u>Explanation:</u>
- The Great Acceleration refers to the humanity’s impact upon the Earth’s geology and its ecosystems caused by continual and surge in growth of human activity.
- It was first recorded in mid-20th century and is continuing to this day. The 'invention of agriculture', advancement in medical technology which reduced the death rate, rapid increase in use of 'fossil fuels', 'fertilizers' and other resources contributed to global changes.
- Agriculture allowed us to produce more food and population increased rapidly.
- Fossil fuels created a surge in production of Green House Gases and global temperature began to rise.
Answer:
The statement which is true is as follow:
d. Two hairs from the same head may not have the same morphological characteristics.
Explanation:
- The statement in option a is not correct as we can't always determine the racial origin of hair.
- The statement in option b is not correct as it is not possible to do through trace elemental composition.
- The statement in option c is not correct as hair is not examined to determine the sex because the Shettles Method is uses to determine the sex of a baby.
- The statement d is correct as the hair have different structural features like length which makes its morphological characteristics.
Answer: Hind wings have tail extensions.
Explanation:
The dichotomous key is a tool which is used by the scientists to identify the unknown living organisms by comparing the observable characteristics of unknown with known living organisms. It stresses to identify the organisms or species by their scientific names and every species has a particular scientific name. Hind wings of butterfly is the observable characteristic which can be compared with that of other known butterfly species that also have a tail extension. This physical characteristic will help in identification of butterfly.
One dangerous consequence of very-low-calorie diets is that they
increase the individual's risk for a condition in which the blood levels become
acidic. This is known as Ketoacidosis.
<span>When the fat burns in the body, a chemical is produced known as ketones.
Some people chose low-carb diet to lose weight, before using low calorie diet
always consult your doctor.</span>