1answer.
Ask question
Login Signup
Ask question
All categories
  • English
  • Mathematics
  • Social Studies
  • Business
  • History
  • Health
  • Geography
  • Biology
  • Physics
  • Chemistry
  • Computers and Technology
  • Arts
  • World Languages
  • Spanish
  • French
  • German
  • Advanced Placement (AP)
  • SAT
  • Medicine
  • Law
  • Engineering
Ronch [10]
3 years ago
8

"To restore and maintain the chemical, physical, and biological integrity of the nation's water" was the purpose of

Biology
1 answer:
kompoz [17]3 years ago
4 0

The answer is d..........

You might be interested in
This image shows a stream of positively charged particles being directed at gold foil. The positively charged particles are call
maksim [4K]

Answer:

D.) When the dense, positive alpha particle passes close to a positive nucleus of gold, the alpha particle repels and hits the screen at point X.

Explanation:

7 0
3 years ago
Read 2 more answers
Which statement about plant classification below is true?
Grace [21]

Answer:

d

Explanation:

3 0
3 years ago
Read 2 more answers
A. How do the Earth’s physical factors influence population density? When population growth increases in an area, what is happen
madreJ [45]

Question 1 The world's population is spread very unevenly. Some spaces are empty or very sparsely populated: we speak of human deserts:

• Cold polar environments are the least populated regions: the ground, frozen permanently, prevents any form of agriculture, the very low temperatures make the habitat difficult.

• The hot or cold desert environments are also not busy: the lack of rain and the strong heat during the day limit the activities of men. The only exceptions are oases.

• The role of relief is more difficult to define. High temperate mountains like the Alps are generally sparsely populated but tropical chains like the Andes have a high population density. However, men have generally settled in the plains, in the valleys (along with the rivers) and on the coasts.

There are also other factors unrelated to land factors that influence population density such as job availability, or even historical factors.

Question 2: Birth rate:

The birth rate (sometimes called the crude birth rate) is the ratio of the annual number of births to the average total population for that year. When the population grows, the contact between people will be more permanent, and it will increase the marriage rate, and thus the birth rate. Age structure:The age structure is a mode of graphical representation of the structure (of age as well as of sex) of a population which constitutes a synthetic image of the past, present and future of the population.When a population resides for a long time in the same place (in favorable conditions, not raising the death rate and without moving), this will vary the age structure by observing an increase in the elderly population.

8 0
3 years ago
Read 2 more answers
What is a diffusion through plasma membrane?
yan [13]
Diffusion is the movement of particles from a high concentration area to a low concentration area. Things that can go through a membrane are ions (charged), small polar molecules. Big molecules can't go through the membrane due to its large size and disrupting the membrane. Passive transport is the movement of substances acrpss the cell membrane w/o the use of energy. Active transport needs energy to move substances across a cell membrane.
7 0
3 years ago
Help Plz! Will give brainliest and for a lot of POINTS!
Andru [333]

Answer:

option b normal fault

Explanation:

sorry if i' m wrong

4 0
3 years ago
Read 2 more answers
Other questions:
  • What helps in the production of proteins and lipids
    12·2 answers
  • It is often stated that the phosphate bonds in atp are "high energy," but in fact, they are not notably high in energy. rather,
    5·1 answer
  • The fact that little albert learned fear toward not only a white rat but also a ball of wool and a rabbit represents:
    8·1 answer
  • Which types of questions can most likely be answered through scientific investigation
    8·2 answers
  • Australia has invested in capital goods, so their standard of living and GDP increasing true or false
    6·1 answer
  • Which statements describe a good hypothesis? Check all that apply. A good hypothesis is based on one’s personal opinion. A good
    12·2 answers
  • Help now! For biology
    12·1 answer
  • what is the best synonym for hormone A. Bodily organ B. bodily tissue C. Blood cell D. Chemical Messenger
    5·2 answers
  • Is pyrex renewable or nonrenewable<br><br> i need help
    14·2 answers
  • In what form is the DNA found when a cell is beginning cell division or is involved in cell division?
    6·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!