What is the difference between continental drift and plate tectonics? The difference between continental drift and plate tectonics is that the theory of continental drift states that the world was made up of a single continent. The theory of plate-tectonics, on the other hand, states that earth’s surface is broken into numbers of shifting plates […]
Why is the fresh water important?
Why is the fresh water important? Freshwater is essential for our planet. Freshwater environments include rivers, lakes, wetlands, streams and underground aquifers. They store and clean the water that’s crucial for people and wildlife. Healthy freshwater environments supply water for drinking, growing crops, manufacturing, energy and transport. What would happen without freshwater? Due to their […]
Who discovered the nuclear?
Who discovered the nuclear? December 1938: Discovery of Nuclear Fission. In December 1938, over Christmas vacation, physicists Lise Meitner and Otto Frisch made a startling discovery that would immediately revolutionize nuclear physics and lead to the atomic bomb. What is a nuclear scientist called? A nuclear scientist is a physicist who studies how to harvest […]
What three phases are individual chromosomes no longer visible?
What three phases are individual chromosomes no longer visible? It is during interphase, telophase, and cytokinesis that the chromosomes are no longer visible. Are a nucleolus and nuclear membrane present? Nucleolus & chromatin is present – Nuclear membrane – Chromosomes move . Is nucleolus nuclear envelope? The nuclear envelope surrounds the nucleus with a double […]
What is a hypothesis test in statistics?
What is a hypothesis test in statistics? Hypothesis testing is an act in statistics whereby an analyst tests an assumption regarding a population parameter. Hypothesis testing is used to assess the plausibility of a hypothesis by using sample data. Such data may come from a larger population, or from a data-generating process. What is null […]
What are the three types of limiting factors?
What are the three types of limiting factors? Some examples of limiting factors are biotic, like food, mates, and competition with other organisms for resources. Others are abiotic, like space, temperature, altitude, and amount of sunlight available in an environment. Limiting factors are usually expressed as a lack of a particular resource. What are the […]
What type of heat transfer is responsible for toasting your bread in a toaster?
What type of heat transfer is responsible for toasting your bread in a toaster? Convection Is Toast making radiation? Toasting is done by radiation, which can supply the higher temperatures required for both caramelization and the Malliard browning reactions. It can be both the Maillard reactions and caramelization, depending upon how dark your toast is […]
Why swimming is not good for you?
Why swimming is not good for you? Swimming is an overhead sport and the human body is not made to handle a lot of overhead activities. Swimming too much can lead to overuse injuries. The main ones are shoulders pain and occasionally knee pain. The training for competitive swimmers has changed in recent years. Why […]
What are the 5 major climate regions?
What are the 5 major climate regions? World climates are generally divided into five large regions: tropical, dry, mid-latitude, high latitude, and highland. What is the 5 climate? Global climates are often divided into five types: tropical, dry, temperate, cold and polar. What climate has two seasons? Tropical What are the two seasons called? As […]
Where do cars get their energy from?
Where do cars get their energy from? petroleum Are electric cars really better for the environment? Benefits of electric vehicles on the environment No car can really benefit the environment – unless it suddenly starts planting trees and absorbing carbon dioxide out of the atmosphere! But EVs are certainly less damaging to the environment than […]