Ques:Q: How does deeper material cause convection in the mantle? Read this paragraph and choose the correct option from the provided answers: Not long after Wegener's death, scientists recognized that there is convection in the mantle. Deeper material is hotter and so it rises. Near the surface, it becomes cooler and denser so it sinks. This creates a convection cell in the mantle. Choices: - remains stable - folds - sinks then rises - rises then sinks A:

Ans:rises then sinks
-----
Ques:Q: Increasing the temperature of n2 molecules increases what energy of motion? Read this paragraph and choose the correct option from the provided answers: Increasing the temperature increases the average kinetic energy of the N2molecules. Choices: - compression energy - residual energy - emotional energy - kinetic energy A:

Ans:kinetic energy
-----
Ques:Q: What is the limiting factor for bacteria in a dish? Read this paragraph and choose the correct option from the provided answers: The blades of simple leaves are not divided. This provides the maximum surface area for collecting sunlight. Choices: - density - speed - material - space A:

Ans:space
-----
Ques:Q: Living things need to take in nutrients so that they can grow and create what? Read this paragraph and choose the correct option from the provided answers: Choices: - protein - plasma - hydrogen - energy A:

Ans:
energy
-----