Which of the following is an inference? a. mrs. thompson asked the students turn in their papers before beginning their presentations. b. melanie cleared her throat before the presentation because she was nervous. c. bobby gave his classroom presentation on the bill of rights. d. sarah said she made an outline to her memorize her presentation.

B

Explanation:Mellonie cleared her throat before the presentation because she was nervous

b

Explanation:

study island.

answer:

convection currents in the magma drive plate tectonics. heat generated from the radioactive decay of elements deep in the interior of the earth creates magma (molten rock) in the aesthenosphere. the aesthenosphere (70 ~ 250 km) is part of the mantle, the middle sphere of the earth that extends to 2900 km.

a researcher conducts an experiment on the secretion of a particular hormone in mice. scientists inject mice with a substance that stimulates the production of the hormone. the scientists then test the levels of hormones produced by the mice. the tool used to measure the hormones consistently detects the levels at 10 points lower than the actual hormone levels in the mice. this tool makes measurements, but the measurements aren't .

explanation:

no u