Answer the following question given this paragraph: Raising the temperature of a chemical reaction usually results in a higher rate of reaction. When the reactant particles are heated, they move faster and faster. This results in a greater frequency of collisions. A more important effect of the temperature increase is that the collisions occur with a greater force and are thus more likely to surmount the activation energy barrier and go on to form products. Increasing the temperature of a reaction increases the number of effective collisions between reacting particles, so the reaction rate increases. Q: Higher temperatures increase the rate of reaction in a lot of chemical reactions because they increase the frequency of what interaction between reactant particles? Choices: - electric - explosions - waves - collisions A:
collisions
Answer the following question given this paragraph: Sand is blown up a slope. Gravity pulls it down the other side. This is how dunes migrate. Q: Sand dunes migrate when sand is blown up a slope and this force pulls it down the other side? Choices: - earthquakes - air pressure - spin - gravity A:
gravity
Q: Answer the following question given this paragraph: Volcanoes may be active, dormant, or extinct. This depends on whether there is the possibility of magma in their magma chambers. Q: Volcanoes are termed active, dormant, or extinct depending on the possibility of the presence of what in chamber structures? Choices: - coal - sulpher - water - magma A:
A: magma
Question: Answer the following question given this paragraph: No new mutations are occurring. Therefore, no new alleles are being created. Q: What is necessary for new alleles to be created? Choices: - cross-pollination - new rna - new frequencies - new mutations A:
Answer: new mutations
*Question*
Answer the following question given this paragraph: Dermal tissue covers the outside of a plant. It's like the plant's skin. Cells of dermal tissue secrete a waxy substance called cuticle. Cuticle helps prevent water loss and damage to the plant. Q: What do cells of dermal tissue secrete? Choices: - moisture - blood - hair - cuticle A:
**Answer**
cuticle
(Question)
Answer the following question given this paragraph: Q: Some microorganisms can digest cellulose, breaking it down into what? Choices: - gluclose polymers - fructose polymers - fructose monomers - glucose monomers A:
(Answer)
glucose monomers