Archive day

March 12, 2026

1,851 public questions were asked on this day.

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Which of the following is a source of carbon dioxide in the atmosphere? plants animals factories sunlight
Asked by jacob 1 answer
Which change happens when water boils?(1 point) The forces between water molecules weaken, and the bonds between the atoms in water are unchanged. The forces between water molecules are unchanged, and the bonds between t...
Asked by puyr 1 answer
Complete the diagram below to show how matter and energy are typically transferred throughout an ecosystem.
Asked by kendall whipple 1 answer
Which list shows the phases of matter in order from strongest collective electrostatic forces to weakest collective electrostatic forces?(1 point) liquid, solid, gas solid, liquid, gas gas, solid, liquid gas, liquid, sol...
Asked by puyr 1 answer
Carbon is returned to the atmosphere through _______. A. respiration of plants and animals B. dissolution of carbon dioxide in water C. photosynthesis D. all of these
Asked by jacob 1 answer
Which statement about the temperatures of phase changes and electrostatic forces holding the molecules is correct?(1 point) The strength of the forces between molecules in a substance is strongest at higher temperatures...
Asked by puyr 1 answer
If the ecosystem is a closed system, which of these things does not change as it cycles through the ecosystem? A. the location of matter B. the total amount of matter C. the form of matter D. all of these
Asked by Rawlings 1 answer
"You be sure to wish Alfred a happy birthday for me, Hannah." Muriel's smile broke for a moment as she added, "How I wish I could have gotten the boy something. It's just been so rough this month, what with Henry sick an...
Asked by dave 1 answer
A diagram of the carbon-oxygen cycle is shown below. Which of the following is mainly responsible for the removal of carbon dioxide from the atmosphere? A. animals B. plants C. factories D. soil
Asked by kendall whipple 1 answer
5. What is the effect of a magnetic field on a stationary electric charge? On a moving electric charge? 6. Why is it a good idea to have the coil of a solenoid wound closely with many turns of wire? 7. What is the purpos...
Asked by k. 1 answer
22 Humpback whales mainly feed on krill, or shrimp-like crustaceans that live in the ocean. When humpback whales feed, they swim upwards with their mouths wide open and swallow thousands of krill all at once. The excess...
Asked by Rawlings 1 answer
The diagram below represents part of the oxygen cycle. Which two major biological processes involved in the oxygen cycle are represented in the diagram? A. photosynthesis and evaporation B. evaporation and precipitation...
Asked by kendall whipple 1 answer
The ability of typhoid to spread can best be attributed to bacteria in unclean water. the lack of good medicine. an unhealthy lifestyle. mosquito bites.
Asked by t 1 answer
Humpback whales mainly feed on krill, or shrimp-like crustaceans that live in the ocean. When humpback whales feed, they swim upwards with their mouths wide open and swallow thousands of krill all at once. The excess wat...
Asked by jacob 1 answer
The Industrial Revolution included innovations in several different areas. Steam-powered ships and railroads made transportation faster and more reliable. Communication also improved with the invention of the telegraph....
Asked by dave 1 answer
Review the image. A pair of hands buckling a seatbelt over a road. What should be added to the image to best support the claim "Every driver should wear a seat belt”? animation that allows the seat belt to open and close...
Asked by jo 1 answer
How does energy usually flow in ecosystems? A. from the Sun through producers to consumers B. from consumers through the Sun to producers C. from producers through the Sun to consumers D. from the Sun through consumers t...
Asked by kendall whipple 1 answer
Which sentence is the best hook for a speech persuading a community to build a skate park? Surfing was popular in the 1950s, and skating developed as a land version of surfing. Did you know that skateboarding has become...
Asked by jo 1 answer
The overall flow of energy through an ecosystem is from A. herbivores to photosynthetic organisms to carnivores and decomposers. B. photosynthetic organisms to herbivores to carnivores and decomposers. C. decomposers to...
Asked by jacob 1 answer
The process of photosynthesis converts carbon atoms from carbon dioxide into _______. A. oxygen B. sugars C. salts D. hydrogen
Asked by Rawlings 1 answer
Examine the diagram of the carbon cycle shown above. Through which of the following processes is carbon returned to the atmosphere? respiration decomposition of organic waste burning of fossil fuels photosynthesis
Asked by kendall whipple 1 answer
Which statement best describes Frederik W. de Klerk? He was sent to prison on various charges for protesting South Africa’s policies of apartheid. He was the president of South Africa in 1990 and pushed reforms that ende...
Asked by t 1 answer
The March on Washington secured civil rights because it influenced the passage of the .
Asked by :) 1 answer
The diagram below represents part of the oxygen cycle. Which arrow, or series of arrows, represents the movement of atmospheric oxygen (O2) during respiration? A. only arrow 2 B. only arrow 6 C. only arrows 2 and 6 D. on...
Asked by Rawlings 1 answer
The food web below shows a diagram of a living system. In the food web, energy and mass are continuously transferred between the producers, consumers, and decomposers. Food webs are evidence that A. living systems follow...
Asked by kendall whipple 1 answer