Carbon and its Compounds — Science STD 10 — Question

Fill in the following blanks with suitable words:
The image in a convex lens depends upon the distance of the __________ from the lens.

The component of a chromosome that controls heredity is ______________.

Fill in the following blanks:
Plant roots grow downward in response to _________.

Fill in the blanks in the following statements:
On going down in a group in the periodic table, the metallic character of elements _________.

Fill in the blanks in the following sentence:
Melting points and boiling points of ionic compounds are generally _______ than those of covalent compounds.

In electrolytic reduction of NaCl, metal is deposited at the and chlorine is liberated at the .

The part of eye sensitive to light is _____.

Fill in the following blanks with suitable words: The scientific name of all human beings is ________ .

All green plants are __________.

Broccoli has evolved from _____ by the process of artificial selection.