Problem: OPTIONS:
- xerosphere
- exosphere
- ionosphere
- thermosphere
Q: Answer the following question given this paragraph: The atmosphere is a big part of the water cycle. What do you think would happen to Earth's water without it?. Q: What is the upper-most atmosphere known as? A:
Answer: thermosphere

Problem:OPTIONS:
- hepatic liverworts
- hornworts
- kidney liverworts
- thallose liverworts

Answer the following question given this paragraph: Jason Hollinger. Liverworts with a flattened, ribbon-like body are called thallose liverworts . CC BY 2.0. Q: What are liverworts with a flattened, ribbon-like body called? A:
****
A: thallose liverworts

Answer the following question given this paragraph: Q: What makes the earth habitable for humans? A:
OPTIONS:
- carbonate of water
- aridity of water
- availability of water
- abundance of water
abundance of water

Answer the following question given this paragraph: 31.2 The Soil Plants obtain mineral nutrients from the soil. Soil is the outer loose layer that covers the surface of Earth. Soil quality depends on the chemical composition of the soil, the topography, the presence of living organisms, the climate, and time. Agricultural practice and history may also modify the characteristics and fertility of soil. Soil consists of four major components: 1) inorganic mineral matter, 2) organic matter, 3) water and air, and 4) living matter. The organic material of soil is made of humus, which improves soil structure and provides water and minerals. Soil inorganic material consists of rock slowly broken down into smaller particles that vary in size, such as sand, silt, and loam. Soil formation results from a combination of biological, physical, and chemical processes. Soil is not homogenous because its formation results in the production of layers called a soil profile. Factors that affect soil formation include: parent material, climate, topography, biological factors, and time. Soils are classified based on their horizons, soil particle size, and proportions. Most soils have four distinct horizons: O, A, B, and C. Q: What consists of four major components: inorganic mineral matter, organic matter, water and air, and living matter? A:
OPTIONS:
- nitrogen
- color
- rocks
- soil

Answer: soil

Question: Answer the following question given this paragraph: The visible range of light (i. e. the range of wavelengths that our eyes can detect) is a very narrow piece of the full EM spectrum. In the visible range our eyes differentiate between the different wavelengths by producing 'color' for them. When we observe something that is green, it is green to us, because the wavelength of the light hitting our eyes is around 550 nm. If the wavelength of light is slightly larger than this it starts to look red, if it is slightly smaller it looks blue. White light is the combination of all the colors. Black light is the absence of EM waves in the visible spectrum for human beings. Q: What color light is actually the absence of electromagnetic waves in the visible spectrum, for humans? A:
OPTIONS:
- ultraviolet light
- infrared light
- blue light
- black light
Answer: black light

input: OPTIONS:
- a lake
- a river
- a riverbank
- a waterfall Now, answer this question: Answer the following question given this paragraph: Mountain streams may erode waterfalls. As shown in Figure below , a waterfall forms where a stream flows from an area of harder to softer rock. The water erodes the softer rock faster than the harder rock. This causes the stream bed to drop down, like a step, creating a waterfall. As erosion continues, the waterfall gradually moves upstream. Q: When a stream flows from a hard to soft rock area, what is often formed? A:
A:
output:
a waterfall