Which of these is an environmental cost of fossil fuel consumption?

a. renewable source

b. cheap energy

c. low pollution

d. increased greenhouse gasses

Four types of motile cells in human body?

Look at the images of different rocks. which rocks have a fine-grained texture? check all that apply. 1 2 3 4 5

Consider darwin's first writings on the theory of natural selection. an important point of darwin's essay on the principle of population, written in 1798, was a peer's observation that in nature plants and animals produce far more offspring than can survive, this observation can be attributed to a) charles lyell. b) thomas malthus. c) jean-baptiste lamarck. d) johann friedrich meckel.