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- Question
Why is burning coal a major source of pollution?
- Correct Answer
- Coal is chemically complex fuel Whenever it is burned, gases are given off and particles of ash, called "fly ash," are released Release of sulfur from burning into the air The sulfur in coal combines with oxygen to form sulfur dioxide, which can be a major source of air pollution if emitted in large enough quantities This stuff comes back as acid rain when it attaches itself to a raindrop Today, many of the effects of coal burning have been reduced significantly or eliminated This is super-nasty and is only stopped by buying low-sulfur coal from Montana or Wyoming The eastern power plants have to pay to move the coal from out west and this increases the price of power production
- 1. Alcohol first impairs your
Options- A. hearing skills
- B. colour recognition
- C. judgement
- D. heart Discuss
- 2. Which of the following is the primary purpose of the DSM?
Options- A. Understanding the causes of mental disorders
- B. Placement of mental disorders in appropriate cultural context
- C. Diagnosis of mental disorders
- D. Selection of appropriate psychological therapies for mental disorders Discuss
- 3. Did mercury cure syphilis? Discuss
- 4. What occurs during the digestion of protein?
Options- A. Specific hormones breakdown proteins into simple sugars
- B. Specific enzymes breakdown proteins into simple sugars
- C. Specific hormones breakdown proteins into complex starches
- D. Specific enzymes breakdown proteins into amino acids Discuss
- 5. The term metabolism is best defined as
Options- A. the number of calories it takes to keep from shivering on a cold day
- B. biochemical reactions involved in building cell molecules or breaking down molecules for energy
- C. the length of time it takes to digest and absorb fats
- D. a measure of carbohydrate utilization, typically involving measurement of calories Discuss
- 6. Which of the following is not transferred by alveoli?
Options- A. Gases
- B. Oxygen
- C. Blood
- D. Carbondioxide Discuss
- 7. Which of the following is a healthy blood pressure level?
Options- A. 120/80
- B. 140/90
- C. 135/75
- D. 130/70 Discuss
- 8. Consumers that eat both plants and animals are
Options- A. Carnivores
- B. Herbivores
- C. Omnivores
- D. Tertiary consumers Discuss
- 9. Which of the following is not a macronutrient?
Options- A. Carbohydrates
- B. Calcium
- C. Chlorine
- D. Proteins Discuss
- 10. What is the major monosaccharide found in the body?
Options- A. Galactose
- B. Sucrose
- C. Fructose
- D. Glucose Discuss
General Science problems
Search Results
Correct Answer: judgement
Correct Answer: Diagnosis of mental disorders
Correct Answer: Mercury was the remedy of choice for syphilis in Protestant Europe Until the early 20th century, the primary treatment for syphilis was mercury, in the form of calomel, ointments, steam baths, pills, and other concoctions Mercury was already being used in Western Europe to treat skin diseases
Correct Answer: Specific enzymes breakdown proteins into amino acids
Explanation:
Protein digestion occurs in the stomach and duodenum in which 3 main enzymes:
1. Pepsin secreted by the stomach
2. Trypsin and
3. Chymotrypsin secreted by the pancreas
Break down food proteins into polypeptides that are then broken down by various exopeptidases and dipeptidases into amino acids.
Correct Answer: biochemical reactions involved in building cell molecules or breaking down molecules for energy
Explanation:
Metabolism (from Greek: ???????? metabol?, "change") is the set of life-sustaining chemical transformations within the cells of organisms. The three main purposes of metabolism are the conversion of food/fuel to energy to run cellular processes, the conversion of food/fuel to building blocks for proteins, lipids, nucleic acids, and some carbohydrates, and the elimination of nitrogenous wastes.
In brief, the chemical processes that occur within a living organism in order to maintain life is called metabolism.
Correct Answer: Blood
Explanation:
The main function of the pulmonary alveoli is to perform the transfer and exchange of gases. Here in the given options, blood is only one which is not gas.
Hence, blood is not transferred by alveoli.
Correct Answer: 120/80
Explanation:
A normal reading would be any blood pressure below 120/80 mm Hg and above 90/60 mm Hg in an adult. If you're in the normal range, no medical intervention is needed.
However, you should maintain a healthy lifestyle and healthy weight to help prevent hypertension from developing.
Correct Answer: Omnivores
Explanation:
An omnivore is an animal that eats food from both plants and animals.
Animals that eat other animals are called carnivores. Carnivores that eat herbivores are called secondary consumers, and carnivores that eat other carnivores are called tertiary consumers.
Correct Answer: Chlorine
Explanation:
Nutrients that are needed in large amounts are called Macronutrients.
There are three macronutrients required by humans:
1. carbohydrates (sugar),
2. lipids (fats), and
3. proteins.
Each of these macronutrients provides energy in the form of calories.
Some other macronutrients are: nitrogen (N), phosphorus (P), potassium (K), calcium (Ca), sulfur (S), magnesium (Mg), sodium (Na).
Correct Answer: Glucose
Explanation:
Glucose is the major monosaccharide found in the body. It is absorbed directly into the bloodstream duringdigestion and a vital carbohydrate as it is a source of energy.
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