D. Light only
This is because photoelectric effect is a phenomenon in which electrically charged particles are emitted from a material when light is incident on it.
The light generates the energy which causes the material to emit electrons.
These electrons are only emitted at certain values of light energy, this thus shows that the light has to be quantized since electrons are not emitted over a range of values of light energy.
Thus, to fully describe the photoelectric effect, only light needs to be quantized.
Nora is considering killing herself.
In this excerpt, we learn that Nora has been feeling extremely upset recently. She knows that her plot has been discovered and her future is in jeopardy. Krogstad asks her whether she has thought about running away from home. He also asks whether she has thought of something even worse. She admits that she has, but that she is not brave enough. The fact that neither one of them mention this "worse" thing indicates that Nora has been considering killing herself.
answer in explanation.
1. plants, animals and bacteria
2.on a forest floor you could find: grass,bugs,leaves,mushrooms etc.
on a desert floor you could find...sand,microbes,feces and possibly animals.
3. It depends on the organic matter that is shown.
4. It tells you what the types of s o i l are.
5. The smallest particles, which measure less than 0.002 millimeters, are called clay. ... Soils vary in their proportions of clay, silt, and sand. Soil scientists classify different soil types using the soil triangle. Each side of the soil triangle represents the amount of a particle of a certain size—clay, silt, or sand.
6. A possibility is we could pump air into the ground.
7. A product‐soil differs from the material from which it is derived in many ... Typically, horizons of a soil profile will follow the topography of a landscape. ... The area of the soil profile known as the “C Horizon” is comprised of parent material.
hoped this helped. :)
B. Light bounces off a white cement sidewalk.
In the excerpt, it is inferred that D. Nora is considering killing herself.
After Krogstad discovers that Nora has committed fraud against him, she realizes he could use that information to blackmail her husband. In this way, he would not lose his job but he would get a higher position. So Nora thinks about suicide as the only way to escape, but Krogstad warns her he will write Torvald a letter telling everything anyways.
Matter of fact and light
Q. What is a theme of the text?
A. It is easy to hold a belief or ideal in theory, but when confronted with the consequences of that belief or ideal, a person may be tempted to inconsistency.
I got it correct. Hope this helps.
The correct answer for the first question: "What inference does the text best support" is option D: "Nora is considering killing herself". An inference can be defined as a conclusion reached by circumstantial evidence presented rather than direct observation, it is also known as an educated guess. In this excerpt, the way both characters are speaking, as if what they talk about is bad, and a taboo (killing one self), can lead to the conclusion that Nora is considering killing herself. Option A is incorrect because it is plainly stated that Krogstad wrote a letter saying the truth, option B is incorrect because in the excerpt it isn't mentioned or implied that Nora will listen to Krogstad, nor that Krogstad thinks Nora is foolish (since he once thought the same way).
The correct answer for the second question: "How does the conversation between Mrs. Linde and Nora affect the plot" is option A: " It has no impact, because Doctor Rank is a minor character in the plot and is not involved with Nora". In the excerpt, Dr. Rank is mentioned as a friend to Nora and her husband, not as a love interest , nor is he involved romantically involved with Nora and it appears he regularly speaks to Nora so he appears in more than one scene, therefore, options B, C and D are incorrect.
different light shows different contrasts and shading
the most reliable source of information.is wikipedia
weather forecasts are done by collecting data about the current state of the atmosphere mainly the temperature, humidity and wind and using meteorology, to determine the atmosphere that evolves over time. the h and l mean the high and low pressure. the red strip is a warm front. the blue strip is a cold front. the blue and red strip is a stationary front. the purple strip is a occluded front.