Abiology class is studying the effect of temperature on the amount of growth of duckweed in an aquarium. what type of data will they need to collect, and which tools will most likely be used?

The type of data that will be collected is QUANTITATIVE DATA. The tools that  will most likely be used are THERMOMETER AND WEIGHING BALANCE.

Explanation:

There are two types of data that a researcher can collect during investigation, these are quantitative and qualitative data. Numeric values can be attributed to quantitative data while qualitative data can not be quantified.

In a situation where a class is studying the effect of temperature on the rate of growth of a plant, the class has to use thermometer to measure temperature and weighing balance to measure the mass of the duckweed plants. The type of data obtained from thermometer readings and weighing balance measurement are QUANTITATIVE DATA, because numeric values can be assigned to them.

answer and explanation;

volcanic rocks are igneous rocks which form from lava, molten rock which has been thrust out of a volcano onto the surface of a rocky body such as an asteroid, planet, or dwarf planet.  

plutonic rocks are igneous rocks which form from subterranean chambers of molten rock or magma. plutonic rocks make up the base of continental crust as well as oceanic crust. their slow rate of formation causes them to be coarse grained since there is plenty of time for large crystals to form before the magma solidifies into rock.

the textural difference is that plutonic rocks are more coarse grained than volcanic rocks. plutonic rocks are coarse grained while volcanic are fine grained ; glassey or fragmental. since fine and coarse are adjectives the decision as to whether a rock is fine or coarse grained is generally made on the bases of whether or not the individual crystals can be seen in most if the rock.