Answer the following question given this paragraph: Greenhouse gases in the atmosphere absorb heat. This is called the greenhouse effect and it makes the planet warmer. Human actions have increased the greenhouse effect. Q: What has increased the greenhouse effect? Choices: - ozone depletion - temperature changes - climate change - human actions A:
human actions
Answer the following question given this paragraph: Electricity is a flow of electrons. Atoms of metals tend to give up electrons, explaining why they are good conductors of electricity. The tendency to give up electrons also explains many of the other properties of metals. Q: Why are atoms of metals good conductors of electricity? Choices: - break into smaller parts - conserve heat - hold on to electrons - give up electrons A:
give up electrons
Q: Answer the following question given this paragraph: The first amino acid to be isolated was asparagine in 1806. It was obtained from protein found in asparagus juice (hence the name). Glycine, the major amino acid found in gelatin, was named for its sweet taste (Greek glykys, meaning "sweet"). In some cases an amino acid found in a protein is actually a derivative of one of the common 20 amino acids (one such derivative is hydroxyproline). The modification occurs after the amino acid has been assembled into a protein. Q: What was the first amino acid to be isolated? Choices: - histamine - histon - glutathione - asparagine A:
A: asparagine
Question: Answer the following question given this paragraph: deep sea trenches : Trenches are found in the sea. Some are near the edges of continents. Trenches are found near chains of active volcanoes. An example is the line of the very deepest blue, off of western South America. Q: What kind of mountainous formation can often be found near trenches? Choices: - earthquakes - caves - craters - volcanoes A:
Answer: volcanoes
*Question*
Answer the following question given this paragraph: The study of rock strata is called stratigraphy . The laws of stratigraphy can help scientists understand Earth's past. The laws of stratigraphy are usually credited to a geologist from Denmark named Nicolas Steno. He lived in the 1600s. The laws are illustrated in the Figure below ; refer to the figure as you read about Steno's laws below. Q: What is the study of rock strata called? Choices: - biochemistry - chemistry - biology - stratigraphy A:
**Answer**
stratigraphy
(Q).
Answer the following question given this paragraph: Laurentbonneau. The holes in bread are created by yeast fermentation . CC-BY 3.0. Q: What causes holes in bread? Choices: - heat - alcohol fermentation - moisture - yeast fermentation A:
(A).
yeast fermentation