Which statement describes ferns?

A. They have tall, exposed stems.

B. They only have a sporophyte stage.

C. They use spores to reproduce.

D. They are anchored by rhizoids.

Explain why water is polar. Check all that apply. View Available Hint (s) Water is known as a polar molecule because Check all that apply. the hydrogen atom attracts electrons much more strongly than the oxygen atom.

Which of the following statements is true? The square root of the molecular weight of a gas is equal to its rate of diffusion. The rate of diffusion of a gas in inversely proportional to the square root of its molecular weight.

Identify the strongest intermolecular force questions

Which one of the following is not a balanced equation? Explain why. A. C3H8 (g) + O2 (g) → CO2 (g) + H2O (g) B. C3H8 (g) + 5O2 (g) → 3CO2 (g) + 4H2O (g) C. 2Mg (s) + O2 (g) → 2MgO (s) D. 4Na (s) + O2 (g) → 2Na2O (s)

A researcher is trying to create a new super conductive wire. Which category on the periodic table should he or she look in first? A) metals Eliminate B) non-metals C) metalloids D) noble gases

Why do humans primarily form communities? A. To analyze group behavior B. To meet the needs of groups and individuals C. To preserve language and culture D. To make and follow codes of conduct

Which of the following is fact-based science rather than part of a belief system a. astrology b. paranormal investigation c. chemistry d. philosophy e. cultural rituals

Meanders form when a river flows across bedrock? true or false

Tank a contains a mixture of 10 gallons water and 5 gallons pure alcohol. tank b has 12 gallons water and 3 gallons alcohol.

Why won't water reform to an ice cube if you freeze it?