Plant roots can prevent erosion<br> True or False

Ture or false <br>Kinetic energy comes from the random motion of particles in a substance.

Usimov [2.4K]

Answer:

True

Explanation:

5 0

3 years ago

A trait such as eye color, which shows extensive variation within a population is the result of __________ .

Brrunno [24]

Answer:

probably natural selection but it could also be discontinous variation.

Explanation:

depends on what context is??

4 0

2 years ago

Due today kinda need help

Elena L [17]

Answer:

Label c is correct!.......

5 0

3 years ago

1.Changes to a substance that do not involve a permanent reordering of atoms are know as

Orlov [11]

1. Changes to a substance that do not involve a permanent reordering of atoms are know as a physical change.

2. Changes that reorder atoms to form new molecules, such as the reaction between sodium and chlorine ions to form sodium chloride, are known as chemical change.

3. What does the release or absorption of energy indicate? A chemical change

4. Which of these is an example of a chemical change? firework exploding

5. Which of the following changes can alter the form of a substance but does not necessarily change it to an other substance? all of the above

6. Chemical compounds undergo both physical and chemical changes. Which of the following is an example of a chemical change? salt (NaCl) being dissolved into water

7. In physical science lab, Kim and Dawn added small pieces of magnesium to hydrochloric acid. They observed that bubbles formed, the test tube got hot, and the magnesium disappeared. What is a sign that a chemical reaction has taken place in this experiment? gas is produced

8. .If two poisonous elements are combined chemically, which of the following will be true of the resulting compound? The compound may or may not be poisonous, depending on the chemical properties of the new substance.

9. What type of change is described in the paragraph above? How do you know? This is a physical change, because the two substances were separated physically by boiling.

10. What conclusion should Max draw from his observations? The tablet that was placed in the water changed directly into a gas through a physical change.

11. Which of these is true of a chemical reaction? Energy is either released or absorbed.

12. What should you do to complete this task? To determine the substances, we will compare the physical and chemical properties of the two substances and perform tests to check if they are reacting the same way in the tests performed. If they react the same way, they are same.

13. Which of these is a chemical property of a substance? flammability

14. Atoms in the same _______ of the periodic share the same chemical properties. group (row)

15. Which of the following are physical properties? Check all that apply. conductivity, melting point, malleability, density and solubility

16. Which of the following represent chemical properties? Check all that apply. oxidation, combustibility , oxidation

17. What characteristic of an atom determines its properties? The atomic number of neutrons

6 0

3 years ago

Read 2 more answers

Match each hazardous waste with its matching description.

Sphinxa [80]

Matching each hazardous waste with its description is shown below :

<u>Hazardous waste description</u>

Asbestos : substance known to cause lung cancer; found in older landfills

Mercury : Substance found in computer monitors that causes brain damage

Cadmium: Hazardous cancer agent found in the batteries of many devices

Lead : Substance from thermostats known to cause reproductive issues

Too much exposure to these hazardous waste always leave a negative effect on the health of individuals, Asbestos are used in the roofing of older buildings and can be found in older landfills. the fiber from asbestos affects the Lungs ( alveoli ) of humans which might lead to lung cancer.

Mercury are used for PC's backlight and also in the mother board of modern computers too much exposure to mercury can lead to brain damage.

Cadmium are hazardous cancer causing agent used in making industrial batteries, prolonged exposure to lead poses several health risk which includes reproductive issues because lead can cut across placenta barrier between a pregnant woman and unborn child.

Hence we can conclude that matching each waste to its description is as

Asbestos : substance known to cause lung cancer; found in older landfills

Mercury : Substance found in computer monitors that causes brain damage

Cadmium: Hazardous cancer agent found in the batteries of many devices

Lead : Substance from thermostats known to cause reproductive issues

Learn more : brainly.com/question/2028075

8 0

3 years ago

Plant roots can prevent erosion True or False