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
Ira Lisetskai [31]
3 years ago
15

What are two key characteristics of a good scientific investigation?

Biology
1 answer:
Afina-wow [57]3 years ago
6 0
Two key characteristics of a good scientific investigation are hypothesis and observation of whatever organism your studying.
You might be interested in
Which step is a protein formed during gene expression?
Finger [1]
D. DNA replication

DNA always forms proteins
7 0
2 years ago
3) Look carefully at the following structural formula, and predict if this compound would turn black if heated
olga nikolaevna [1]

Answer:

It would turn black. H H 6. It would not turn black. does Briefly explain why you chose either a or b. Because it does not contain courbon or any such compound which change color upon heating

7 0
2 years ago
Soils are an important part of the global carbon cycle. tree or false??
Sonbull [250]
True would be my guess
4 0
3 years ago
What is one reason that carbon dioxide is increasing in the atmosphere<br> today? *
pishuonlain [190]

Answer:

Concentrations of carbon dioxides are rising mainly due to energy-burning fossil fuels. Fossil fuels such as carbon or oil include carbon plants which, over the years, are photosynthesized in the atmosphere; in a few hundred years we have returned this carbon to the air

Explanation:

Even fundamental human functions — eating inhalation and digestion — generate CO2. In the life cycles of the earth, it is an essential chemical. Active plants and trees are absorbing CO2 and turning it into food with sunlight and water. There are problems when more CO2 is emitted than is absorbed by our vegetation. Activities to produce high carbon dioxide include:

  • Consuming electricity: Fossil fuels emit CO2, with coal emitting twice as much gas as oil. Worldwide, 85% of energy is generated by fossil fuels. As China and India continue to industrialize, the number of coal-burning plants will rise. Today, power generation represents 41 percent of CO2 emissions in the United States.
  • Transportation: Locomotive is the second greatest source for U.S. CO2 emissions for business or pleasure. Travel is also a factor internationally. A cruise ship study indicated that holidays at sea produce 12 times more CO2 than on land. 41,000 tonnes of CO2 was generated at Denmark's 11-day worldwide Copenhagen Conference on Climate Change. U.S. representatives alone produced sufficient CO2 to fill 10,000 Olympic pools.
  • Building: Manufacturing produces large amounts of CO2, yet only represents 2% of US emissions. The most serious offenders are the manufacture of iron and steel and cement. These businesses use huge amounts of thermal energy to turn commodities into building products.
  • Deforestation: Trees are powerful organisms that absorb CO2 from the air and remove it. It stops the process by cutting them down. While deforestation is a tiny source of increasing CO2 in the U.S., 20 percent of global CO2 emissions are due to forest loss. Fuel-burning trees and natural forest material breakdown also generate CO2.

7 0
3 years ago
2 part question what makes up the rungs of the DNA ladder? and What makes up the Rungs of DNA
Harman [31]

Answer:

The rungs of the ladder are pairs of 4 types of nitrogen bases. Two of the bases are purines- adenine and guanine. The pyrimidines are thymine and cytosine.

6 0
3 years ago
Other questions:
  • Which phylum of the animal kingdom includes all organisms which possess a spine (backbone)? chordata arthropoda annelida mollusc
    12·2 answers
  • Which of the following observations BEST demonstrates water’s special property of cohesion?
    5·1 answer
  • If an amoeba engulfs a particle of food does it use energy?
    9·1 answer
  • The large, leaf-shaped piece of elastic cartilage that is attached to the anterior rim of the thyroid cartilage and forms a lid
    7·1 answer
  • What field of science are homologous structures used as evidence for??
    7·2 answers
  • (getting the right answer will result in 99 points) A substance that influences the reaction but does not participate in the rea
    6·2 answers
  • 1. During RNA processing a(n)___________ is added to the 5' end of the RNA. A. 3' untranslated region. B. a long string of adeni
    10·1 answer
  • For each levels of classification for an organism, describe what it is made up of and the relation to the functions.
    5·1 answer
  • The two main processes by which plant cells absorb,release, and use energy are
    8·2 answers
  • Harold’s wonders how much of a role genetics plays in determining his weight. He has heard about a gene, called leptin. Mice wit
    15·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!