The harmful effects of materials that are invented by technology are materials that are not biodegradable. This is because the materials are synthetic materials and cause destruction to the environment.
Raw materials
The materials used to make cement are,Calcareous materials (limestone)Argillaceous materials (clay)gypsumCoal dustIron oxidemagnesiumAlkalies
you obtain genetic materials from your parents organisms.
Cardboard, metal,wood and other strong materials
who are rubt briges sons name
she is old
She not died got it
Malcolm Hall
Briges
pooh
She not died got it
Yes!aduh!
an engineer
thay were 30 in 2010
She has 4 sons and no daughters.
people build briges