P-1 Gravitation — Science STD 10 — Question

Fill in the following blanks with suitable words:
According to Newlands’ classification of elements, the properties of sulphur are similar to those of oxygen because sulphur is the _________ element starting from oxygen.

Fill in the blanks in the following statements:
The horizontal rows in a periodic table are called _________.

Fill in the following blanks with suitable words:
Fusion of gametes gives rise to a single cell called ________.

Fill in the following blanks with suitable words:
The __________ blood cells make antibodies whereas ___________ blood cells help in respiration.

Non - metals combine with oxygen to form __________.

An atom is said to be a non-metal if it ………… electrons.

Places on Earth exactly 90° to the direction of the moon experiences __________.

During transformation of liquid phase to solid phase, the latent heat is called ______________

Plastic bottles are formed from a chemical substance ………… .

The frequency of AC current in India is ………… .