4. Intermediate conductivity and a low melting point.
Hope I helped :) mark as brainliest**
Answer:
Production of electricity from nuclear energy is a lot more expensive than production of energy from fossil fuels
Explanation:
uranium is one of the rarest elements on earth, its more expensive than gas and oil, and it makes the same if not more pollution.
Explanation:
study of social sciencake us an effcient citizen of a democracy ,and it also help us to solve the practical problem in our daily life.
Answer:
This question is incomplete as it lacks options, the options are:
Which change would be the most effective way to improve the validity of this experiment?
A) Increase the number of goldfish in each tank.
B) Increase the daily amount of food for each tank.
C) Create another group that is fed regular fish food.
D) Increase the number of tanks in each treatment group.
The answer is C
Explanation:
According to this question, an experiment is conducted by Trey to determine which fish food causes the most goldfish activity over a period of two weeks. In this experiment, the independent variable is the FISH FOOD which are; Swift Salmon food and Fast Flounder food. Other variables such as type of gold fish, amount of fish food, amount & type of water etc.
One of the ways to improve an experiment, which is lacking in this case is to have a CONTROL GROUP. Based on the fish foods used for each group, it is obvious that all groups in this experiment are experimental. Hence, creating another group that is fed regular fish food will serve as the CONTROL GROUP in order to compare with the experimental groups. This will improve the validity of the experiment.
The statement 'both allow citizens to vote for members of the legislature' describes a similarity between presidential and parliamentary democracies. They are different forms of government.
<h3>Presidential and parliamentary democracies</h3>
Democracy refers to a form of government where people vote to choose authorities designed to decide legislation.
A presidential democracy is when the presented is voted to be the head of government (president) separately from the legislative system.
Parliamentary democracy is a form of government where the political party having the greatest representation in the legislature forms the government.
Learn more about presidential and parliamentary democracies here:
brainly.com/question/3069300
