A is false because light and sound waves can both reflect off of objects
Answer: The correct and is
D. Extrusion
Explanation:
What is extrusion?
Extrusion is a manufacturing process used to make basically pipes and hoses.
The pvc granules are melt into a liquid which is forced through a die, forming a long 'tube like' shape. The shape of the die determines the shape of the tube.
The extrusion is then cooled and forms a solid shape
Extrusion moulding is used to create products with a consistent cross-section.
'N' is labelled 'runoff'. That's when the water is down. Streets are wet, worms come out of the ground, and water flows down the street to the sewer.
The total distance traveled by the car at the given velocity and time is 900 m.
The given parameters:
- <em>initial velocity of the car, u = 20 m/s</em>
- <em>acceleration of the car, a = 12 m/s²</em>
- <em>time of motion of the car, t = 20 s</em>
- <em>final time = 30 s</em>
- <em>final acceleration = 2 m/s²</em>
The final time of motion of car before coming to rest is calculated as follows;
The graph of the car's motion is in the image uploaded.
The total distance traveled by the car is calculated as follows;
Thus, the total distance traveled by the car at the given velocity and time is 900 m.
Learn more about velocity-time graph here: brainly.com/question/24874645
Correct answer is Availability of soil minerals.
There are two types of limiting factors that affect plant population in a ecosystem. They are:
- Biotic
- Abiotic
Biotic factors includes food, diseases etc. Such as Invasive weed species, seed dispersal by wind, disease-causing fungal spores are examples of biotic limiting factor.
Abiotic factors include sunlight, temperature and chemical environment. The availability of soil mineral is an example of abiotic limiting factor. Growth of plant population depends on availability of soil minerals.
