Answer:
The correct answer will be
Test variable or dependent variable- The time required to melt the ice cube
Explanation:
In a scientific experiment, three types of variables are kept and studied which includes: The independent variable, dependent variable and the constant variable.
Among these three, the variable to be tested is known as the dependent variable which is influenced by the independent variable which changes.
In the given question, since the experiment was performed to test the rate of the release of heat by a different substance which could be tested by measuring the rate or time required to melt the ice cube which depends on the type of casserole.
Thus, the time required to melt the ice cube is the correct answer.
Answer:
A. standing in line to pay for groceries.
Explanation:
Just standing there is not doing work, All of the other options are examples of work.
Answer:
Freeze wedging is caused by the repeated freeze-thaw. Frost wedging occurs as the result of 9% expansion of water when it is converted to ice. Cracks filled with water are forced further apart when it freezes.
Answer:
Aquatic ecosystem has two components -
- Biotic components
2.Abiotic components
temperature and amount of sunlight are the part of abiotic component .
while living things like sponges and planktons are the biotic components of ecosystem.
Explanation:
aquatic components are of two types-
freshwater ecosystem( lakes and ponds, river and streams)
marine ecosystem(ocean ecosysyem, estuaries)
planktons-
planktons are found in limnetic zone, availability of sunlight is much here. planktons are zooplanktons and phytoplanktons are very important link in aquatic ecosystem.
sponges
In marine water, the <em>benthic zone</em> is the area below the<em> pelagic zone.</em> Here temperature decreased because of less light perception. This zone is very nutrient rich so organisms which are present here are- bacteria, fungi, sea anemone, sponges and some fishes.
