Biology
Which type of tissue is responsible for providing support and structure to the body?
Connective Tissue.
What is the chemical symbol for the element Oxygen?
O
Name one greenhouse gas other than carbon dioxide.
methane, Nitrous oxide
What happens when light reflects off a smooth and shiny surface?
it follows the law of reflection, bouncing back at the same angle it hit the surface.
1 Trillion Lions VS The Sun. Who Would Win?
The Sun
What is the main function of the lungs in the respiratory system?
The lungs in the respiratory system help us breathe by taking in oxygen and releasing carbon dioxide.
Balance the following chemical equation:
H₂ + O₂ → H₂O
2H₂ + O₂ → 2H₂O
What is the ozone layer?
The ozone layer is a region in the Earth's stratosphere that contains a high concentration of ozone molecules. It plays a crucial role in absorbing harmful ultraviolet radiation from the sun.
What type of lens is a diverging lens?
A diverging lens is a concave lens.
What is the main greenhouse gas responsible for the Earth's warming?
carbon dioxide (CO2).
Which type of tissue covers the external surface of the body and lines internal organs?
Epithelial tissue
What type of chemical reaction occurs when iron rusts in the presence of oxygen and water?
Oxidation or Corrosion
How does the Earth's tilt and wobble naturally contribute to changes in temperature and the occurrence of seasons?
When a hemisphere is tilted towards the Sun, it experiences summer. When a hemisphere is tilted away from the Sun, it experiences winter.
What type of lens is a magnifying lens typically made of, and what kind of image does it produce?
A magnifying lens is typically made of a convex lens. It produces a magnified and virtual image.
What are the Vena Cava responsible for?
The vena cava are responsible for carrying deoxygenated blood back to the heart.
What are the structures in the heart that prevent the backward flow of blood and ensure it only moves forward?
Heart Valves/Valves
What happens to the pH of a solution when an acidic substance is added to it?
When an acidic substance is added to a solution, the pH of the solution decreases. It becomes more acidic.
What are sources of carbon dioxide (CO2), methane (CH4), and nitrous oxide (N2O)?
Carbon dioxide (CO2) is produced through various natural and human activities. Natural sources include respiration in living organisms, volcanic eruptions, and the decomposition of plants/organisms.
Sources of methane include livestock farming, rice cultivation, coal mining, oil and gas production, and the decomposition of organic waste in landfills.
Nitrous oxide (N2O) is produced naturally by bacteria in soils and oceans, as well as through volcanic activity. Human activities contribute to N2O emissions through the use of nitrogen-based fertilizers.
What does the Law of Reflection State?
On a smooth surface the angle of incidence is equal to the angle of reflection.
What are the different types of waves based on the electromagnetic spectrum?
Radio Waves, Micro Waves, Infrared, Visible, Ultraviolet, X-rays, Gamma rays
What is the primary function of the pancreas in the digestive system
The pancreas is an organ in the digestive system that helps break down food and controls the sugar levels in our blood.
What are the 4 types of reactions?
decomposition, single-replacement, double-replacement, and combustion.
What is ocean acidification and how does it affect marine ecosystems?
When carbon dioxide dissolves in seawater, it forms carbonic acid, leading to a decrease in pH. This can have harmful effects on marine ecosystems, such as impacting the ability of certain organisms, like coral reefs and shellfish, to build and maintain their structures.
What is dispersion of light?
Dispersion of light is when white light is separated into its component colors when passing through something like a prism or drop of water, resulting in a rainbow.
In color printing, how does a printer produce black ink without having black ink?
They combine the three primary colors, cyan, magenta, and yellow. By printing overlapping dots of these colors in specific combinations and densities, they can create black.