What is the name of the number, found in front of the chemical formula of a molecule, that represents the number of each specific type of molecule found in a chemical reaction? The subscript B The chemical equation C The coefficient The chemical symbol

Q: Which is older the moon or the sun? How do you know?

A:   The solar system consisting of sun and planets formed about 4.56 billion years ago from a cloud of...

Q: Researchers looking for fossils of the earliest life forms face many hurdles. For example, few sedim...

A: Plate tectonics started about 3.2 billion years ago. During this time only vertical motion occurred ...

Q: What geographic feature does the arrow indicate

A:   The orientation of geographic features on the map is inferred by the arrow present in the map.  

Q: The topic of Emerging Diseases is very current in our lives today. Please compare and contrast Covid...

A:   In the spring of 1918, H1N1 virus which caused Spanish flu is detected in United States military p...

Q: Why is much of the world’s tropical forest biome located along the equator?

A: Equator is the region the warm temperature throughout the year. It receives maximum precipitation on...

Q: What are the physical properties of soil? And what are the importance of physical properties for cro...

A:   Soil texture Soil texture is based upon the relative percentages of soil particles such as sand, s...

Q: How does the lag time change as you get farther and farther from the epicenter of an earthquake? (Us...

A: The earthquake is a natural disaster that occurs due to the collision of the tectonic plates which p...

Q: What general direction was the Pacific plate moving between 70.7 and 43.4 million years ago?

A: Just after the beginning of the subduction, the subduction zone shifted or started moving towards th...

Q: What is the Coriolis force, and how does it influence the movement of oceanic currents? Would the Co...

A: The Coriolis force refers to the tendency of objects (wind and ocean currents) to remain in their or...

Q: Draw a cross-section and explain why an ocean wave breaks as it nears the shoreline.

A:   As the waves reaches shallower water, the growth in wave height occurs in a wave shoaling process....

Q: If convection of magma within the Earth stopped, do you think that there would still be active volca...

A: The convection in the Earth’s mantle is caused by the hot material which rises upwards and then agai...

Q: Draw and label a cross-section that explains the tectonic cycle.

A:      The Plate Tectonic Cycle is the movement of lithospheric plates comprising of crust and uppermo...

Q: A 5.3 x 1012 kg satellite is 1,800 m from another satellite that has a mass of 3.5 x 108 kg. What is...

A: The force of gravity (Fg) between two objects with masses m1and m2, is related inversely to the dist...

Q: Counting atoms Assessment Ag2S How many total atoms are there in the formula

A:   In the compound Silver sulfide Ag2S, there is Ag and S element. The element Silver, Ag has subscri...

Q: 1. How does the solubility of CO2 in water change with temperature? 2. It is possible that changes i...

A: The solubility of a gas is its ability to dissolve in another liquid. The solubility of CO2 in water...

Q: Why Structures built in permafrost areas should have their foundations installed in the permanently ...

A:   Above the permafrost is a zone in which soil is saturated with water in pore spaces. It is frozen ...

Q: The oldest rocks on Earth contain zircon crystals that are 4.4 billion years old. does this mean tha...

A:   In 2001, the oldest known zircon crystal was dated about 4.4 billion years old. This indicates tha...

Q: ANSWER THE FOLLOWING GUIDE QUESTIONS.  1. What are the outstanding characteristics of the igneous, s...

A: Characteristics of Different Rocks Sedimentary Rocks  Formed from solid, loose fragments of sand, ...

Q: What will happen if we run out of water? How we could minimise the impact?

A:   Water is used for drinking, washing, hydrating crops, livestock, harnessing electricity and variou...

Q: Similarities and difference of anthropocentric and ecocentric

A:   Anthropocentric is "human-centered"  An anthropocentric viewpoint suggests that humans must sustai...

Q: can you help me cite the "veldt" by Ray Bradbury and "The Lottery" by Shirley Jackson in MLA8 Format...

A: Bradbury, Ray. The Veldt, The Saturday Evening Post, 23 Sept. 1950, repositorio.ufsc.br/bitstream/ha...

Q: Fullertonian decays to Tuffyton with a half life of 3 million years (aside: these are fake elements)...

A:   Let the number of half-lives be n.  So, required time period, t= nT1/2 where T1/2 is Half-life of ...

Q: How would treating an area of a forest with a broad-spectrum fungicide affect carbon and nitrogen cy...

A: Fungicides are used to destroy or prevent the growth of fungi and their spores, which damage crops, ...

Q: What roles do density and convection play in man-made disasters like the BP oil spill?

A: Oil contains volatile gases that evaporate upon contact with the surface water. This causes the oil ...

Q: Loihi is an active volcano located south of Kilauea (see Figure 2). Loihi’s peak is still below sea ...

A:   Hot spot is an area of volcanic eruptions with high heat flow above a rising mantle plume. These a...

Q: Which of the following statements regarding igneous rocks is not true? a. Extrusive rocks have larg...

A: Igneous rocks are two types extrusive and intrusive. Intrusive rock formed by the cooling of magma w...

Q: How many days is the Moon in the waxing phase and the waning phase?

A: The Earth's lunar cycle lasts 29.5 days. The waxing phase of the moon occurs when the moon is increa...

Q: How do tsunamis affect the atmosphere?

A: The ripple effect of a high-intensity earthquake-tsunami combo can cause disturbances in how the mol...

Q: an you give a reason why ecosystem stability is important to the life-forms in the ecosystem. And th...

A:   Each and every species performs a particular function within an ecosystem. They capture and store ...

Q: Which of the following is (are) external drivers of Earth's climate? atmospheric greenhouse gas l...

A: External drivers of climate are those that influence the climate from outside the Earth's climate sy...

Q: What diameter telescope is needed to see the separation between Uranus and its largest moon, Titania...

A: The Rayleigh Criterion based on the equation (θ = 1.22 λD) is used to estimate the smallest possible...

Q: In Section 24-3 you explored whether Pluto really is a planet or if it is something else. Based on w...

A: True - Pluto is too far away to study in detail from Earth.    

Q: True or False Hybrid classification combines both supervised and unsupervised?

A: A combination of supervised and unsupervised classification i.e., hybrid classification is used in r...

Q: Is resonance more likely for a 20-story building when shaken by P waves or Rayleigh waves?

A: P- waves are the primary waves generated form the focus. These are least destructive and travel in a...

Q: What is the volcano formed?

A: The volcano formation process shown in the image shows how the volcanic island of Kauai was formed. ...