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
Gre4nikov [31]
3 years ago
10

Which are thought to have contributed to the decline of the Indus Valley civilization?Select all correct answers. a) The Indus R

iver and its tributaries changed course. b) Major sandstorms blanketed the cities, forcing people to leave. c) The soil became too salty for crops to grow. d) Cities were destroyed by raging fires. e) People moved to more fertile regions of the subcontinent.
Social Studies
1 answer:
iren [92.7K]3 years ago
8 0

Answer:

The answers are C and E.

c) The soil became too salty for crops to grow;

e) People moved to more fertile regions of the subcontinent.

Explanation:

The Indus River Valley civilization (3300-1300 BCE) used to use salt water on their agricultural system. So, as the times passes the salt overloaded the soil making it inappropriate to grow anything; thus forcing the civilization to move to more fertile regions in order to have more stable and abundant crops.

You might be interested in
Josephine scored very high on the scholastic aptitude test (sat) on all three parts. she is likely to possess high ________ inte
Wewaii [24]
<span>She has high logical-mathematical intelligence. By having a high aptitude in this realm, she shows she is able to complete tasks that require number sense, logical sense, and the ability to understand definitions and higher-level concepts.</span>
8 0
3 years ago
A researcher is interested in how heart rate and blood pressure are affected by viewing a violent film sequence as opposed to a
Effectus [21]

Answer:

The answers are:

a. dependent

b. independent

c. test

d. control

Explanation:

In scientific research, investigations are done to study whether certain factors change while changing others, and the following terms are associated with  scientific research:

a. dependent variable: These are factors or outcomes that are being investigated in a research experiment, and they are not under the direct control of the researcher. They are factors that vary as a result of other changes made in the process. In our example, the heart rate and blood pressure are proposed to vary with the type of film watched hence these factors are dependent variables.

b. independent variable: Independent variables are variables that are under the direct manipulation of the researcher, and the predetermined variation of these variables cause certain effects on the dependent variables. In our example, the type of film is the independent variable, because the researcher has complete control over the type of film watched.

c. Test group: These are the group of participants/individuals in research, who will potentially be affected by the change in the dependent variable to cause an effect that deviates from the normal. In our example, the group that views the violent film is the test group, because there is a tendency that they might have altered heart rate and blood pressure as a result of the type of film viewed.

d. control group: The control group is the group of individuals whose effects at the end of the experiments will serve as baseline effects, to serve as a means of measuring the magnitude of variation in the test group. These groups serve to eliminate any other effects that might cause similar changes as the factor being investigated in all test participants.

7 0
3 years ago
3 valuable nutrients soybean meal and cornmeal add to foods?
vitfil [10]
<span>Table 2. Nutrient Value of Selected By-products Feeds and Grains (values are % of dry matter)<span>FeedDry Matter ContentTDNStarch & SugarCrude Protein</span><span>Whole Soybeans90852238</span><span>Soybean Meal90753254</span><span>Soy Hulls91751414</span><span>Ground Wheat89867014</span><span>Wheat Midds89803819</span><span>Wheat Bran8970 17</span><span>Ground Barley88806012</span><span>Brewers' Grains21 or 92661426</span><span>Cracked Corn88877510</span><span>Distillers' Grains25 or 91891429</span><span>Corn Gluten Feed30 or 90823020</span><span>Hominy90925212</span><span>Whole Cottonseed90875522</span><span>Cottonseed Meal92771544</span><span>Beet Pulp917440<span>10</span></span></span>
4 0
3 years ago
A cohort study was designed to assess the impact of sun exposure on skin damage in beach volleyball players. During a weekend to
stepan [7]

Answer:

Cohort study

Explanation:

A cohort study is a longitudinal studio (which mean a group is observed through time) where the sample is a cohort (people who share some characteristics) and they are used to identify factors that might contribute to a particular condition, illness or disease.

In this case, the sample was made of people who <u>shared a common characteristic: being volleyball players</u>. This study was used to identify how <u>the use of sunscreen would affect the skin in terms of damage.</u>

<u />

Therefore, we can say that this is an example of cohort study.

6 0
3 years ago
In order to balance daily hassles and not settle into a depressed state, it's very important that we experience minor positive e
Elis [28]
These events are called "uplifts".

Uplifts are positive regular events. Day by day Hassles 35 Rush hour movement, long queues, work pressure, burnout are most noteworthy wellsprings of stress and can harm wellbeing Daily Hassles and Uplifts Daily issues are generally minor occasions emerging out of everyday living, for example, losing your home keys and missing the school transport. 
5 0
3 years ago
Other questions:
  • Individuals living alone now make up __________ percent of u.s. households.
    13·1 answer
  • What term is used to describe the difference between limited resources and wants and needs
    6·1 answer
  • Larry wants to keep track of his vintage vinyl records, the value of each record, and who he lends the records to for parties. L
    5·1 answer
  • What economical system tells the choices that are determined by the environment?
    9·1 answer
  • Can u pls help me with this question ​
    9·1 answer
  • Black lives matter!!!!!!!!!!! Be free
    9·2 answers
  • What planet has the largest satellite
    12·1 answer
  • What continent can we find kingdom of kush and Egypt
    13·1 answer
  • What are the four means of transport ? very short​
    10·1 answer
  • Her information about frogs was wonderful, but ____ in a paper about the solar system.
    6·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!