Answer:
Acceleration is the rate of change in velocity
Answer:
The rate of change of velocity of an object is defined as its acceleration
Answer:
B. The material is cooler and denser.
Explanation:
The earth is made up of three layers, the crust, the mantle and the core. Each layer has different characteristics and temperatures, becoming warmer and less dense as it approaches the core.
Man has never reached the core of the earth, but the study of the internal structure of the planet is possible thanks to the studies of geophysicists, who are dedicated to the study of seismology. They observe the phenomena of seismic waves and rely on apparatus to define the characteristics of each layer.
Answer: 2HCl + CaCO3 => CaCl2+ CO2 + H2O
Explanation:
The equation is now balanced.
2 atoms H in both reactant and product side.
Cl have 2 atoms on both sides.
Ca have 1 atom in both sides.
C have 1 atom on both sides and
O have 3 atoms on both reactant and product side
Intertidal zone is the shallowest part of an ocean ecosystem where the depth is not too much.
An Ecosystem is defined as a system which consists of all living organisms and the physical components with which the living beings interact. The abiotic and biotic components are linked to each other through nutrient cycles and flow of energy.
Energy enters the ecosystem through the process of photosynthesis .Animals play an important role in transfer of energy as they feed on each other.As a result of this transfer of matter and energy takes place through the system .Living organisms also influence the quantity of biomass present.By decomposition of dead plants and animals by microbes nutrients are released back in to the soil.
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