Answer:
Biomass is a plant that operates a similar gas and coal-fired plants. Instead of burning fuel this plant is fueled by (different biomass like growing trees,wood chips,biogad,etc)
Ex: In 2017 ,biomass generated 2.3% of the world's electricity
Hope this helps !
Answer:
An experimental group is a group that receives the variable being tested in an experiment. The control group is the group in an experiment that does not receive the variable you are testing.
Explanation:
Control group, the standard to which comparisons are made in an experiment. ... A typical use of a control group is in an experiment in which the effect of a treatment is unknown and comparisons between the control group and the experimental group are used to measure the effect of the treatment.
The control group would be the group you keep control as you would not change anything about it throughout the course of the experiment. The experimental group you would give the experimental drug to.
Answer:
The correct answer is - B. they build up soil deposits on the rocky ground.
Explanation:
Lichens and mosses are known as the pioneer species as they prepare the particular region for the next stages of succession on the bare volcanic region. Lichens and mosses grow on the bare rocks and secrete acids to break the rocks and start soil production.
The soil deposits produced by breaking the volcanic rocks by secreting acids from mosses and lichens. Even after dying these species leads to thickening of the soil and increase organic matter for the next stages to grow.
