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Science Questions and Answers (Q&A)

B. Lucian, Literature Professor
Answered: Nov 01, 2019
No. A flower cannot grow without sunlight, water, and air. Sunlight, water, and air are three basic factors necessary for the growth of any plant; for survival, plants need the three components....Read More

3 Answers

J.Graceec, Literature Professor
Answered: Nov 01, 2017
One year has approximatly 52 weeks. One calendar common year has 365 days: 1 common year = 365 days = (365 days) / (7 days/week) = 52.143 weeks = 52 weeks + 1 day. One calendar leap year occures...Read More

3 Answers

S. Nicole, Wordsmith
Answered: Sep 25, 2019
MiRNA and SiRNA are both discussed in molecular biology. MiRNA stands for micro ribonucleic acid while SiRNA stands for small interfering ribonucleic acid. MiRNA is a type of natural molecule...Read More

2 Answers

A. Boaz, Mechanical Engineer
Answered: Nov 21, 2019
Tomato seeds are green because they contain photosynthetic chlorophyll, which is the pigment in plants that provides them their green color. Chlorophyll is vital in the development of...Read More

2 Answers

C. Reyes, Mechanical Engineer
Answered: May 15, 2018
To understand radioactive tracers it helps to first understand that all substances are made up of atoms and all atoms have a nucleus. The nuclei of some atoms will disintegrate and when they do,...Read More

2 Answers

V. Barnes, Mechanical Engineer
Answered: May 18, 2018
One of the more unconventional (and still underutilized) ways of generating electricity is by capturing human body heat. Ventilation systems in shopping malls and underground subways have been...Read More

2 Answers

W. Mocroft, Philanthropist
Answered: Nov 23, 2018
There's more than one name put forward as The Father of Science. This is because Science has a number of disciplines within its massive area. It is common practice to point to Galileo because he...Read More

2 Answers

T. ADAMS, Senior Executive
Answered: Sep 18, 2019
The correct answer to this question is Diffusion selectively permeable membrane. Osmosis occurs when water moves through the membrane of a cell. Another part of osmosis is water potential. This...Read More

2 Answers

C. Snow, Motivator
Answered: Oct 31, 2018
There are a lot of theories about who actually started to use pi when trying to solve the circumference of the circle. Some say that it was first discovered in India in the 5th century. It was...Read More

2 Answers

V. Barnes, Motivator
Answered: May 18, 2018
A spleen is an organ in the human body located in the upper left part of your abdomen, behind your ribs, under your diaphragm and above and behind your stomach. Its primary function is to filter...Read More

2 Answers

F. Lopez, Motivator
Answered: May 29, 2018
Quarks are the fundamental building blocks of all particles. Describing them as fundamental particles means the particles do not have a substructure and cannot be split. The first evidence for...Read More

2 Answers

M. Wright, Motivator
Answered: May 23, 2018
Hot air makes a balloon fly. The air is heated with a propane heater similar to how you might heat your outdoor barbeque grill. The balloon stays afloat because air is a gas and when it is...Read More

2 Answers

K. Wilson, Marketing Analyst
Answered: Oct 31, 2018
La Mancha Negra = the black stain. In Venezuela, 1989, a black gooey stain appeared on a stretch of road in Caracas not that far from its airport. At first quite small, it soon stretched to 8...Read More

2 Answers

M. Wright, Marketing Analyst
Answered: May 23, 2018
A hydraulic press in simple terms is a machine that uses pressure exerted on fluids to crush something. Hydraulic presses can be small handheld units or large units weighing several thousand...Read More

2 Answers

M. Wright, Marketing Analyst
Answered: May 23, 2018
Bernoulli’s theorem helps explain why a heavy object, like an airplane, can achieve lift (or the ability to rise up into the air). His theorem basically says that faster moving air has low...Read More

2 Answers

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