Scientific knowledge must be supported by evidence. an idea that is not supported by evidence but is made to appear scientific in order to make people think it is a part of science is called pseudoscience. pseudoscience cannot be considered scientific because pseudoscientific ideas lack evidence. which of the following ideas is considered scientific?   a.  the way the stars are positioned can be read to know the future.  b.  crop circles are made in fields by alien organisms.  c.  bigfoot lives in the forest and travels around the u. s.  d.  genes are made up of dna and affect how an organism looks.

Which of these is a physical property

An alloy contains 66 g of pure zinc. what is the percentage of zinc in the alloy? express your answer to two significant figures and include the appropriate units.

Plz me ! 1 which of earths spheres contains most of its mass? a atmosphere b hydrosphere c geosphere* d biosphere 2 erosion and weathering are examples of which types of forces? a constructive forces b destructive forces* c gravitational forces d inertia-related forces 3 which of the following statements about earths atmosphere is true? a earths atmosphere contains 78% water vapor which is essentail to life b earths atmosphere contains 21% oxygen c earths atmosphere contains carbon dioxide which all life forms require d earths atmosphere allows radiation from the sun to pass through it and warm earths surface* 4 the strenght of the force of gravity between two objects is determined by which of the following factors? select all that apply a the messes of the objects* b the distance between the objects* c the volumes of the objects d the surface area of the objects 5 earth and moon are kept in there respective orbits due to the influence of a inertia b gravity c gravity and inertia* d neither gravity or inertia if you answer all questions right i will give