Environmental systems chapter 3 pt 1

The basic units of matter, the smallest units that maintain the chemical properties of an element, are called

• atoms.

• lipids.

• compounds.

• molecules.

Tags

NGSS.MS-PS1-1

The phosphorus cycle involves mainly the

• atmosphere and biosphere.

• lithosphere and hydrosphere.

• geosphere and biosphere.

• asthenosphere and hydrosphere.

Tags

NGSS.MS-ESS2-1

Because of their large size, proteins, nucleic acids, carbohydrates, and lipids are together called

• solutions.

• elements.

• hydrocarbons.

• macromolecules.

Why is water often called "the universal solvent"?

• It can dissolve many other molecules.

• Water can turn into a solid form.

Which sphere are humans a part of?

• geosphere

• hydrosphere

• biosphere

• atmosphere

Tags

NGSS.MS-ESS3-4

A compound is a chemical substance with a given set of properties that cannot be broken down into substances with other properties.

• True

• False

Because water molecules are polar, they tend to repel one another.

• True

• False

Sometimes, an output of a system is also an input for the same system.

• True

• False

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NGSS.MS-LS2-3

Earth's ____________________ consists of all the planet's living or once-living things and the nonliving parts of the environment with which they interact.

• biosphere

• atmosphere

• lithosphere

• hydrosphere

Tags

NGSS.MS-LS2-1

NGSS.MS-LS2-3

In a process called ________________________, the addition of phosphorus to bodies of water can lead to an overgrowth of producers (usually algae).

• eutrophication

• photosynthesis

• respiration

• decomposition

Tags

NGSS.MS-LS2-4