chemistry
This gas is produced when mixing an acid with a metal.
What is hydrogen gas?
In this type of circuit, current has only one path to flow, and components are connected end-to-end.
What is a series circuit?
This sphere includes all of Earth's water, from oceans and rivers to ice caps and groundwater.
hydrosphere
disease causing agents
pathogens
The best selling artist in 2024
Taylor Swift
This type of reaction requires energy from the system to drive it forward.
What is an endothermic reaction?
A 6-volt battery. The total resistance of the circuit is 15 ohms. This is the total current flowing through the circuit when the lantern is turned on.
What is 0.4 amps?
The part of the atmosphere that absorbs some solar radiation, allowing for the greenhouse effect.
ozone layer
The largest organ in the human body, serving as a protective barrier.
skin
This layer in the Arctic is permanently frozen.
What is permafrost?
A reaction where an acid and a base combine to form a salt and water.
What is a neutralisation reaction?
The current in the circuit is 18 mA.
This is the resistance of the circuit if there is a 9 V battery.
500 Ohms
The process by which dead zones in surface area are formed where bacteria decompose dead organic matter
eutrophication
Dengue fever, a disease that is transmitted by mosquitoes, is caused by this.
a virus
This is a measure of how slippery a liquid is.
viscosity
This law states that matter is neither created nor destroyed in a chemical reaction, meaning atoms are rearranged.
What is the law of conservation of matter?
The unit for electric potential difference, often thought of as the "push" that drives current.
During this cycle, plants absorb carbon dioxide from the atmosphere, and animals release it through respiration.
What is the carbon cycle?
This primary protection against infectious disease is found in the respiratory pathway
mucous or cilia
This deepest known oceanic trench on Earth is located in the western Pacific Ocean.
Mariana Trench
The salt that is produced after sodium hydroxide (NaOH) reacts with sulfuric acid (HsSO4)
What is sodium sulfate (Na2SO4)?
In a complete circuit, what term describes the flow of electric charge?
What is current?
The aspect of the atmosphere that allows for the absorption of infrared radiation and is not a consequence of human activity.
the greenhouse effect
The Anopheles mosquito acts as a vector for this parasitic disease, prevalent in tropical and subtropical regions.
malaria
This organ secretes insulin in the body.
What is the pancreas?