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- Question
Photosynthesis contributes to plant growth by
Options- A. taking in carbon dioxide and making carbohydrates (sugars)
- B. converting sugar to oxygen and water
- C. taking in oxygen and making wood
- D. synthesizing carbon dioxide and making cellulose
- Correct Answer
- taking in carbon dioxide and making carbohydrates (sugars)
ExplanationPhotosynthesis is a process used by plants and other organisms to convert light energy into chemical energy that can later be released to fuel the organisms activities.
- 1. Which of the following is a function of the geosphere?
Options- A. providing a moderate, livable climate
- B. serving as the interface between the other spheres
- C. facilitating the movement of water through spheres through transpiration
- D. facilitating the process of photosynthesis Discuss
- 2. Biogeochemical cycles are crucial to ecosystem function because
Options- A. they keep the planet warm enough for living things to survive
- B. energy flows through ecosystems in one direction only and is eventually dissipated as heat
- C. they prevent catastrophic extinctions
- D. nutrients and other life-sustaining molecules are in limited supply and must be continually recycled Discuss
- 3. Which process removes carbon dioxide from the atmosphere?
Options- A. Combustion
- B. Photosynthesis
- C. Respiration
- D. All of the above Discuss
- 4. What is the science of mapmaking called?
Options- A. Coriography
- B. Cartography
- C. Photograrnmetry
- D. Mapping Discuss
- 5. Which of the following statements describes the glycemic index of foods?
Options- A. the extent to which a given food raises blood glucose and insulin levels
- B. the amount of insulin required to metabolize 100 grams of glucose
- C. an individual?s glucose/insulin ratio in a fasted state
- D. the glucose content of a given food Discuss
- 6. Which of the following statements about water is false?
Options- A. There is extensive intramolecular hydrogen bonding in the condensed phase.
- B. Water is oxidized to oxygen during photosynthesis.
- C. Ice formed by heavy water sinks in normal water.
- D. Water can act both as an acid and as a base. Discuss
- 7. The main products of photosynthesis are
Options- A. Oxygen
- B. Sugar
- C. Both A & B
- D. Carbon dioxide Discuss
- 8. Which type of doctor specializes in teeth and jaw alignment?
Options- A. Orthodontist
- B. Pediatrician
- C. Psychiatrist
- D. Oncologist Discuss
- 9. A homogeneous mixture is also called
Options- A. Compound
- B. Pure substance
- C. Solution
- D. None of the above Discuss
- 10. Which of the following is a property of water?
Options- A. High polarity
- B. Universal solvent
- C. High specific heat
- D. All of the above Discuss
General Science problems
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Correct Answer: serving as the interface between the other spheres
Explanation:
The geosphere is the earth's solid rock or rigid outer layer known as the crust. Without the geosphere it would not be possible for humans to live on the planet. The function of the geosphere serving as the interface between the other spheres.
Correct Answer: nutrients and other life-sustaining molecules are in limited supply and must be continually recycled
Explanation:
Biogeochemical cycles are crucial to ecosystem function because ::
1. Chemical elements are available in only limited amounts and must be recycled.
2. Nutrients and other life-sustaining molecules are in limited supply and must be continually recycled.
Correct Answer: Photosynthesis
Explanation:
Photosynthesis process removes carbon dioxide from the atmosphere. Green plants remove carbon dioxide from the atmosphere by photosynthesis.
The level of carbon dioxide in the atmosphere is maintained by several processes, including photosynthesis, respiration and combustion.
Correct Answer: Cartography
Explanation:
The art and science of map making is called Cartography.
Correct Answer: the extent to which a given food raises blood glucose and insulin levels
Explanation:
The glycemic index or glycaemic index is a number associated with the carbohydrates in a particular type of food that indicates the effect of these carbohydrates on a person's blood glucose (also called blood sugar) level. A value of 100 represents the standard, an equivalent amount of pure glucose.
The GI represents the rise in a person's blood sugar level two hours after consumption of the food.
Correct Answer: There is extensive intramolecular hydrogen bonding in the condensed phase.
Explanation:
Water possess intermolecular hydrogen bonding in the condensed phase.
Hence, the given statement 'There is extensive intramolecular hydrogen bonding in the condensed phase.' about water is FALSE.
Correct Answer: Both A & B
Explanation:
The two main products of photosynthesis are sugar and oxygen. Oxygen is emitted as waste product and sugar is used for energy preparation using sun light.
Correct Answer: Orthodontist
Explanation:
An orthodontist is the type of doctor that specializes in teeth and jaw alignment. When the teeth don't align properly, it can cause uneven wear in the teeth.
The jaw is a hinge joint. Strong muscles in the face open and close the jaw. Teeth are implanted in the jaw and serve to rip, tear and crush food in preparation for swallowing it.
Correct Answer: Solution
Explanation:
A homogeneous mixture is also called as solution.
The term "solution" is more frequently used when a homogeneous mixture is a liquid, although it is sometimes used if the homogeneous mixture is a gas.
Another name for a solid homogeneous mixture of metals is an alloy.
Correct Answer: All of the above
Explanation:
Yes, we know that water is a universal solvent.
Water can moderate temperature because of the two properties: high-specific heat and the high heat of vaporization.
Water is a polar molecule that has a high level of polarity and attraction to ions and other polar molecules.
Hence, all the above given options are the properties of water.
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