This pie chart presents data on sources of methane emissions in the united states between 1990 and 2013. which questions would clarify the evidence in the chart?

Temperatures in ponds and lakes vary by season. select the best answer from the choices provided t f

What is a photon? a. part of a ribosome b. a light particle c. a carbon dioxide molecule d. part of a chloroplast b.a light particle

2. which of the following statements does not accurately describe stem cells? a. embryonic stem cells make up the inner cell mass of a blastocyst. b. with more research, stem cells may be used to repair or replace damaged cells. c. the use of stem cells is without any objections since it can be used in therapies to humans. d. adult stem cells are multipotent and can differentiate into many types of cells.