Answer:
Scientist come to know about the land feel by various measures such as quantity of methane gas, quantity of radioactive materials, etc. They collect data from a particular area and checks it whether it is under critical range or not.
Explanation:
Land-filling is a process by which all the waste which is solid is buried under the ground. It is also a type of land pollution. It degrades the land quality. The land is no more fertile to grow crops. some of the waste are also radioactive which harmful effect the animals and plant living in that area. It also tends to have the humans living nearby that area. this area is also capable of creating methane gas which is very explosive in nature.
Scientist plays an important role for finding out the critical condition of land. They also have instrument which are very helpful for finding out the critical range of the radioactive materials.
A way to hold a test tube is with pliers and the opening facing up
<h3><u>Answer;</u></h3>
all types of plants
all animal populations
<h3><u>Explanation</u>;</h3>
- Biotic factors are the living components of an ecosystem and include organisms such as <u><em>producers or autotrophs, consumers or heterotrophs, and decomposers or detritivores.</em></u>
- Abiotic factors on the other hand are the non-living parts of an environment. They include factors such a<em><u>s sunlight, temperature, wind, water, soil and naturally occurring events such as storms, fires and volcanic eruptions. </u></em>
The mandible of a crayfish is used to grind food. The maxillae holds,tears, and passes the solid food to the mouth. What structures are used for capturing prey or securing and. eating food. The mandible of a crayfish is used to grind food
